Class 7

Samacheer Kalvi 7th Science Solutions Term 2 Chapter 4 Cell Biology

You can Download Samacheer Kalvi 7th Science Book Solutions Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Science Solutions Term 2 Chapter 4 Cell Biology

Samacheer Kalvi 7th Science Cell Biology Textual Evaluation

I. Choose the correct answers:

Question 1.
Basis unit of life.
(a) Cell
(b) Protoplasm
(c) Cellulose
(d) Nucleus
Answer:
(a) Cell

Question 2.
the outer most layer of an animal cell. Who am I?
(a)Cell wall
(b) Nucleus
(c)Cell membrane
(d) Nuclear membrane
Answer:
(c) Cell membrane

Question 3.
Which part of the cell is called the brain of the cell?
(a) Lysosome
(c) Mitochondria
(b) Ribosome
(d) Nucleus.
Answer:
d) Nucleus

Question 4.
________ helps in cell division.
(a) Endoplasmic reticulum
(b) Golgi complex
(c) Centriole
(d) Nucleus
Answer:
(c) Centriole

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Question 5.
Suitable term for the various components of cell is _________
(a) Tissue
(b) Nucleus
(c) Cell
(d) Cell organelle
Answer:
(d) Cell organelle

Fill in the blanks:

  1. The jelly like substance present in the cell is called _______.
  2. I convert the Sun’s energy into food for the plant. Who am I?_________.
  3. Mature Red blood cell do not contain a ________.
  4. Unicellular organisms can only be seen under a ________.
  5. Cytoplasm plus nucleoplasm is equal to ________.

Answer:

  1. cytoplasm
  2. chloroplast
  3. Nucleus
  4. Microscope
  5. Protoplasma

III. True or False – If False give the correction answer

Question 1.
Animal cells have a cell wall.
Answer:
False, Plant cells have a cell wall.

Question 2.
Salmonella is a unicellular bacteria.
Answer:
True

Question 3.
Cell membrane is fully permeable.
Answer:
False, Cell membrane is selectively permeable.

Question 4.
Only plant cells have chloroplasts.
Answer:
True.

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Question 5.
Human stomach is an organ.
Answer:
True.

Question 6.
Ribosomes are small organelles with a membrane.
Answer:
False. Ribosomes are small organelles without a membrane.

IV. Match the following:

Question 1.

  1. Transporting channel – Nucleus
  2. Suicidal bag – Endoplasmic reticulum
  3. Control room – Lysosome
  4. Power house – Chloroplast
  5. Food producer – Mitochondria

Answer:

  1. Transporting channel – Endoplasmic reticulum
  2. Suicidal bag – Lysosome
  3. Control room – Nucleus
  4. Power house – Mitochondria
  5. Food producer – Chloroplast

V. Analogy:

Question 1.
Bacteria : microorganism :: mango tree :________
Answer:
Macroorganism.

Question 2.
Adipose : tissue :: eye :_________
Answer:
Organ

Question 3.
Cell wall: plant cell:: centriole :_________
Answer:
Animal cell.

Question 4.
Chloroplast: photosynthesis :: mitochondria :________
Answer:
Respiration.

VI. Choose Use connect alternative from the following :

Question 1.
Assertion (A) : Tissue is a group of dissimilar cells.
Reason (R) : Muscle is made up of Muscle cell.
(a) Both A and R are true
(b) Both A and R are false
(c) A is true but R is false
(d) A is false but R is true
Answer:
(a) Both A and R are true

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Question 2.
Assertion (A) :Majority of cells cannot be seen directly with naked eye because.
Reason (R) :Cells are microscopic.
(a) Both A and R are true
(b) Both A and R are false
(c) A is true but R is false.
(d) A is false but R is true.
Answer:
(a) Both A and R are true

VII. Very short answer:

Question 1.
What are the functions of cell wall in plant cell?
Answer:
Protection, maintains shape of cell and acts as protective framework.

Question 2.
Which organelle uses energy from sunlight to make starch?
Answer:
Chloroplast uses energy from sunlight to make starch.

Question 3.
What are the main things in a nucleus?
Answer:
Nuclear envelope, Nucleolus, chromatin body.

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Question 4.
What does cell membrane do?
Answer:
It acts as boundary of cell and protects it.

Question 5.
Why lysosomes are known as scavengers of the cell?
Answer:
The lysosomes are the main digestive compartments of a cell and digest damaged cell parts. Hence they are called scavengers of the cell.

Question 6.
Teacher said “A virus is not an organism” Do you agree with this statement or
not? Explain Why?
Answer:
True I agree with the statement. A virus acts as a living organism within the body of a host and behaves like a non-living thing outside. It lacks cell wall, cell membrane, cytoplasm and organelles. Hence it is not a organism.

VII. Give short answer :

Question 1.
Why the cell is very important for us?
Answer:

  1. Cell is the basic structural and functions unit of life.
  2. It is the building unit of living organism.
  3. A group of cells form a tissue which forms the organ and organ systems.
  4. This helps a living organism to do its functions. Hence cell is very important for us.

Distinguish between the following pairs

  • Smooth ER and Rough ER
  • Cell wall and cell membrane
  • Chloroplast and mitochondria

Answer:
Smooth ER (Endoplasmic Reticulum)

  1. It is smooth due to absence of Ribosomes.
  2. It helps in transport of steroids and lipids.

Rough ER (Endoplasmic Reticulum)

  1. It is’rough due to presence of Ribosomes.
  2. It helps in protein synthesis

Cell wall

  1. It is seen only in plant cells.
  2. It is made of cellulose.

Cell membrane

  1. It is seen in plant and animal cells.
  2. It is made of proteins and lipids.

Chloroplast

  1. It is a organelle seen only in plant cells (green plants)
  2. It helps in synthesis and storage of starch.

Mitochondria

  1. It is a organelle seen in plant and animal cells.
  2. It is the centre of respiration in a cell and produces energy.

Question 3.
Write correct sequence from cell to organism?
Answer:
Cell —> Tissue —> Organ —> Organ system —> Organism.

Question 4.
Write a short note on nucleus.
Answer:

  1. Nucleus is seen in the cytoplasm of plant and Animal cells.
  2. It is surrounded by nuclear envelope.
  3. It has one or two nucleoli and chromatin body.
  4. The chromatin body stores genetic information.

Functions of Nucleus:

  1. It controls all the processes and chemical reactions that take place inside the cell.
  2. Inheritance of character from one generation to another.

Question 5.
Classify the following terms into cells, tissues, organs and write in the tabular column given below:
Neuron, Lungs, Xylem, brain, adipose, Leaf, RBC, WBC, hand, muscle, heart, ovum, squamous, phloem, cartilage.
Answer:

Cell Tissue Organ
Neuron Xylem Lungs
RBC Adipose Brain
WBC Muscle Leaf
Ovum Squamous Hand
Phloem Heart
Cartilage

Question 6.
On the lines given below, write about what you have learned from the activities done in this lesson.
Let me tell you about some of the important things I’ve learned about cells. First, I’ll start with… .
First, I’ll start with___________________________.
Answer:

  1. Cell is the basic unit of an organisms.
  2. Based on number of cells organisms can be classified as unicellular and multicellular organisms.
  3. The cells form tissues, Tissues form organs, Organ system help an organism to function.
  4. The cell wall is seen only in plant cells.
  5. Cell membrane is seen only in plant cells.
  6. Cell membrane is seen in all cells.
  7. The organelles of the cell like chloroplast, Mitochondria, Ribosomes, Endoplasmic Reticulum, Golgi bodies etc help to perform cell functions.
  8. Nucleus is the controlling centre of a cell.

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IX. Given long answer:
Question 1.
Write about any three organelles in detail.
Answer:
The three organelles are as follows
Chloroplasts:

  1. They are green organelles seen in plant cells only.
  2. They can prepare food using sun is energy and photosynthesize since they contain the pigment chlorophyll.
  3. They absorb the radiant energy of the sun and convert it to chemical energy to be used by plants and animals.

Golgi Complex:

  1. They are cell organelles which consist of membrane bound sacs stacked on top of one another and have associated secretory vesicles.
  2. Golgi complex helps in production of secretory substances, packaging and secretion.

Mitochondria:

  1. It is a oral double membrane bounded organelle.
  2. Aerobic respiration occurs in mitochondria and energy is released. Hence mitochondria is called as power house of the cell
  3. The energy produced is used for metabolic activities of the cell.

Question 2.
In a situation, how to explain, while your friend ask what is this, never seen before ?
Samacheer Kalvi 7th Science Solutions Term 2 Chapter 4 Cell Biology image - 1
Answer:

  1. This is a animal cell.
  2. It is the basic unit of an animal body.
  3. Animal cell is covered by a cell membrane and lacks cell wall.
  4. It has organelles like mitochondia, Golgi apparatus, Ribosomes, etc..
  5. It differs from plant cells since it lacks chloroplast.
  6. It has centrioles which are not seen in plant cells.
  7. Nucleus is the controlling centre of the cell.

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Question 3.
Compare the plant cell and the animal cell and complete the illustration given below
Answer:
Samacheer Kalvi 7th Science Solutions Term 2 Chapter 4 Cell Biology image - 2

X. Higher ordear Thinking question :
Virus is called Acellular. Why?
Answer:

  1. Virus is made up of a outer protein coat and a nucleic acid.
  2. It lacks cell wall, cell membrane, organelles and cytoplasm.
  3. Therefore a virus is described as a cellular.

Samacheer Kalvi 7th Science Cell Biology Intext Activities

Activity – 1

Question 1.
Do you remember the lesson studied in previous class, how will you find whether an object is living or non – living? Write it down. An object is living or non-living?
Answer:
Living things: Living things use energy. They move or change shape.
Eg: Humans, insects, plants, animals etc.
Non-living things:
Do not move by themselves, grow or reproduce.
Eg: Rocks, car, pencils etc.

Question 2.
Form a team and work together to write down some of the functions of life, which you can remember.
Answer:
Reproduction, response to stimuli, Growth, movement, excretion

Question 3.
Do you think that an individual cell is living? Explain your answer.
Answer:
Cells are living things. Cells are found in plants, animals and Bactria.

Question 4.
Write about various organelles of a cell which you know.
Answer:
Vacuole, lysosome, endoplasmic reticulum, Golgi appartus, mitochondria, chloroplast.

Activity – 2
Find out major organs that are part of the circulatory system of a human body and list out their functions.
Answer:

Organs

  1. Heart (Cardiovascular)
  2. Lungs (Pulmonary)
  3. Blood vessels – Arteries
  4. Blood vessels – Veins

Functions

  1. Pumps oxygenated and deoxygenated blood on different sides.
  2. In oxygen from incoming air enters the blood and carbon-di-oxide, a waste gas from the metabolism, leaves the blood.
  3. Carry blood away from the heart.
  4. Carry blood back to the heart.

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Activity – 3
Study the pictures given and write the differences between cells that you observe in the given table
Answer:
Samacheer Kalvi 7th Science Solutions Term 2 Chapter 4 Cell Biology image - 3

Activity – 4
Summarise what you have learnt Now you’ve studied the internal structure of a cell. Let us summerise what we have learnt so far Complete this table by filling the main function of each of the cell structures.

Cell Structure

  1. Cell membrane
  2. Cell wall
  3. Cytoplasm
  4. Mitochondria
  5. Vacuole
  6. Chloroplast
  7. Endoplasmic reticulum

Function(s)

  1. Boundary of an animal cell.
  2. Supporter and protector.
  3. Giving a ceil its shape.
  4. Energy releaser.
  5. Support the organelle.
  6. Food producers.
  7. Synthesis protein lipids, steroids and transport them

Samacheer Kalvi 7th Science Cell Biology Additional Question :

Choose the correct answer.

Question 1.
________ is the largest organelle
(a) Chloroplast
(b) Mitochondria
(c) Nucleus
(d) Golgi apparatus
Answer:
(c) Nucleus

Question 2.
The ______cells are spindle shaped.
(a) muscle
(b) nervous
(c) RBC
(d) epithelial
Answer:
(a) muscle

Question 3.
The________ plays a role in change of colour and taste of fruits.
(a) nucleus
(b) Golgi bodies
(c) lysosome
(d) chloroplast
Answer:
(b) Golgi bodies

Question 4.
________lacks a nucleus.
(a) Nerve cell
(b) Muscle cell
(c) RBC
(d) Brain cell
Answer:
(c) RBC

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Question 5.
Starch is stored in _______
(a) chloroplast
(b) leucoplast
(c) chromoplast
(d) Golgi apparatus
Answer:
(b) leucoplast

II. Fill in the blanks.

  1. Plastids containing coloured pigments are called ________
  2. cells have the ability to multiply and develop into different types of cells.
  3. ________are seen only in animal cells.
  4. An organelle seen in bacteria and cell of higher organisms is ______
  5. Cell wall is made up of ________

Answer:

  1. Chromoplasts
  2. stem
  3. centrioles
  4. Ribosome
  5. cellulose

III. True or false – if false, give the correct statement.
Question 1.
Leucoplast store steroids.
Answer:
False, Leucoplasts store starch.

Question 2.
Bacteria is a animal cell.
Answer:
False, Bacteria is a plant cell.

Question 3.
Amoeba contains chloroplants.
Answer:
False, Amoeba does not contain chloroplasts.

Question 4.
Mitochondria can help to photosynthesize.
Answer:
False, Mitochondria can help to produce energy

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Question 5.
The cytoplasm consists of 90% water.
Answer:
True

Question 6.
The body of a nerve cell is branched.
Answer:
True.

IV. Match the following:

Question 1.
Samacheer Kalvi 7th Science Solutions Term 2 Chapter 4 Cell Biology image - 4
Answer:
(c)
(d)
(b)
(a)

V. Analogy:

Question 1.
Golgi: secretion :: Endoplasmic reticulum: _________
Answer:
Transport.

Question 2.
Plant tissue : Xylem :: Animal tissue : _________
Answer:
Epithelium.

Question 3.
Plant organ : stem :: Animal organ : _________
Answer:
Stomach.

VI. Assertion and Reason.
Mark the correct choice as
(a) Both A and R are true.
(b) Both A and R are false
(c) A is true but R is false.
(d) A is false but R is true

Question 1.
Assertion (A) : Stem cells can form different types of cells.
Reason (R) : They are found in plants and animals.
Answer:
(c) A is true but R is false

Question 2.
Assertion (A): The cell wall has pores.
Reason (R) : Each cell is connected to its neighbouring cell.
Answer:
(a) Both A and R are true

VII. Very short Answers:

Question 1.
Define a tissue.
Answer:
Tissue is a group of cells organized for a specific function.

Question 2.
What is Plasmodesmata?
Answer:
Each plant cell is interconnected with its neighboring cells through openings called Plasmodesmata.

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Question 3.
What is ATP?
Answer:
ATP stands for Adenosineri Phosphate and is the energy currency of a cell.

Question 4.
What is unique about embryonic stem cells?
Answer:
They can develop into any type of cell in the body. Such as blood cell, nerve cell etc.

Question 5.
Name the types of plastids.
Answer:
Chloroplasts, chromoplasts and leucoplasts.

Question 6.
Name a cell which lacks a nucleus.
Answer:
Red blood cell.

VII. Short Answer.

Question 1.
Why are lysosomes called as ‘suicidal bags of the cell’?
Answer:
Lysosoms can lyse (destroy) a cell by producing enzymes. Hence they are known as suicidal bags of the cell.

Question 2.
What is endoplasmic reticulum?
Answer:
It is an inter membranous network made up of flat or tubular sacs within the cytoplasm. Endoplasmic reticulum is of two types. They are rough endoplasmic reticulum and smooth endoplasmic reticulum

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Question 3.
List the functions of Nucleus.
Answer:

  1. It controls all the processes and chemical reactions that take place inside the cell.
  2. Inheritance of character from one generation to another.

Question 4.
Why is mitochandia known as power house of the cell?
Answer:
Aerobic respiratory reactions take place within the mitochondrion to release energy. So it is known as “The Power House’” of the cell.

Question 5.
What is a vacuole?
Question:
It is a membrane bound bag like structure filled within organic and organic molecules along with water and found in plant cells to support the organelles. Animal cell has very small vacuoles.

VIII. Long Answer

Question 1.
List the functions of cell wall.
Answer:

  1. Cell wall provides a frame work for support and stability.
  2. It allows the plant to remain rigid and upright.
  3. It helps to maintain the shape of the plant cell.
  4. It has openings called plasmodesmata through which neighboring cells are interconnected.
  5. It acts as a protective covering for the cell.

Question 2.
Draw a plant cell and label the parts.
Answer:
Samacheer Kalvi 7th Science Solutions Term 2 Chapter 4 Cell Biology image - 5

Question 3.
List the differences between Plant cell and Animal cell.
Answer:

Plant cell

  1. It has cell wall.
  2. It has plastids such as chloroplasts, chromoplasts etc.
  3. Centrioles are not seen.
  4. It has a large vacuole.
  5. It is larger in size.

Animal Cell

  1. Cell wall is absent.
  2. Plastids are absent.
  3. It has centrioles which help in cell division.
  4. Vacuoles are small or absent.
  5. It is smaller in size.

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IX. Hots:

Question 1.
Bacterial cells can prepare food. Do you agree?
Answer:
Yes, some bacterial cells have chlorophyll pigments and can prepare food.

Question 2.
Stem cells are used by doctors to treat diseases. Do you agree with this statement?
Answer:
Yes. Stem cells can divide and form any other cell type and hence can be used to cure several diseases like spinal cord injury.

Samacheer Kalvi 7th Science Solutions Term 2 Chapter 4 Cell Biology Read More »

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

You can Download Samacheer Kalvi 7th Social Science Book Solutions Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

Samacheer Kalvi 7th Social Science Resources Textual Exercises

I. Choose the correct answer:

Question 1.
Which one of the following is renewable resource?
(a) Gold
(b) Iron
(c) Petrol
(d) solar energy
Answer:
(d) solar energy

Question 2.
Where is the largest solar power project situated in India?
(a) Kamuthi
(b) Aralvaimozhi
(c) Muppandal
(d) Neyveli
Answer:
(a) Kamuthi

Question 3.
Which is one of the first metals known and used by man?
(a) Iron
(b) Copper
(c) Gold
(d) Silver
Answer:
(b) Copper

Question 4.
_______ is one of the indispensable minerals used in electrical and electronics Industry.
(a) Limestone
(b) Mica
(c) Manganese
(d) Silver
Answer:
(b) Mica

Question 5.
Electricity produced from coal is called ________.
(a) Thermal Power
(b) Nuclear power
(c) Solar power
(d) Hydel power
Answer:
(a) Thermal Power

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

II. Fill In the blanks

  1. ______ is the largest producer of hydroelectricity.
  2. Iron ores found at ______ in Tamil Nadu.
  3. ______ is produced from bauxite ore.
  4. ______ is used in making electrical batteries.
  5. Petroleum and its derivatives are called ______.

Answers:

  1. China
  2. Kanjamalai
  3. Aluminium
  4. Manganese
  5. Black Gold

III. Match the following

Question 1.

  1. Renewable resource – Iron
  2. Metallic resource – Mica
  3. Non-metallic resource – Wind energy
  4. Fossil fuel – Sedimentary rock
  5. Limestone – Petroleum

Answers:

  1. Renewable resource – Wind energy
  2. Metallic resource – Iron
  3. Non-metallic resource – Mica
  4. Fossil fuel – Petroleum
  5. Limestone – Sedimentary rock

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

IV. Consider the following statement and tick (✓) the appropriate answer

Question 1.
Assertion (A): Wind power is Clean Energy.
Reason (R): Wind turbines do not produce any emissions
(a) A and R are correct and R explains A
(b) A and R are correct but R does not explain A
(c) A is incorrect but R is correct
(d) Both A and R are incorrect
Answer:
(a) A and R are correct and R explains A

Question 2.
Assertion (A): Natural gas is found with petroleum deposits.
Reason (R): it can be used as a domestic and industrial fuel.
(a) A and R are correct and R explains A
(b) A and R are correct but R does not explain A
(c) A is incorrect but R is correct
(d) Both A and R are incorrect
Answer:
(a) A and R are correct and R explains A

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

V. Answer the following

Question 1.
Define Resource.
Answer:
Anything which can be used for satisfying human needs is called a resource.

Question 2.
What are the uses of iron?
Answer:

  • Iron is used to manufacture steel and also used in civil engineering like reinforced concrete, griders etc.
  • It is used to make alloy steels like carbon steels with additives such as nickel, chromium, vanadium, tungsten, and manganese.

Question 3.
What are the major utilizers of solar energy in the world?
Answer:
India, China, Japan, Italy, and the States of America are major utilizers of solar energy in the world.

Question 4.
Name the types of coal-based on carbon content.
Answer:
Coal is classified into four types based on carbon content. They are:

  1. Anthracite
  2. Bituminous
  3. Lignite
  4. Peat

Question 5.
Give a short note on Duralumin.
Answer:
Duralumin is an alloy, a trade name given to the earliest types of the age hardenable aluminum alloys. It is an alloy made up of 90% aluminum, 4% copper, 1 % magnesium and 0.5% to 1 % manganese. Duralumin is a hard, but lightweight alloy of aluminum.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

VI. Distinguish the following

Question 1.
Biotic resources and abiotic resources.
Answer:
Biotic Resources:

  1. Biotic resources are found in the biosphere obtained from living and organic materials.
  2. It includes forests, crops, birds, animals, fishes, and fossil fuels.

Abiotic Resources:

  1. Abiotic resources come from nonliving non-organic material.
  2. It includes land, water air, sunlight, gold, copper, silver, etc.

Question 2.
Renewable resources and non-renewable resources.
Answer:
Renewable resources

  1. A renewable resource is used repeatedly and replaced naturally.
  2. It will not produce pollution.
  3. Ex. solar energy, wind energy and hydropower.

Non-Renewable resources

  1. Natural resources that once consumed and cannot be replaced is called non-renewable resources.
  2. Continuous consumption leads to exhaustion.
  3. Ex. Fossil fuels coal, Petroleum, natural gas and mineral resources iron, copper bauxite, gold, silver etc.

Question 3.
Metallic resources and non-metallic resources.
Answer:
Metallic resources

  1. Metallic resources are composed of metals.
  2. These are hard substances and good conductors of heat and electricity.
  3. Ex. iron, copper, gold, bauxite, silver, manganese etc.,

Non-Metallic resources

  1. Non-metallic resources do not comprise of metals.
  2. These are not hard substances and are not good conductors of heat and electricity.
  3. Ex. Mica, limestone, gypsum, dolomite, phospate etc.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

VII. Give reason

Question 1.
Aluminium has wide range of uses compared to other metals.
Answer:

  • Aluminium has a wide range of uses compared to other metals.
  • Because Aluminium is light in weight, tough and cheaper.
  • It is used in the construction of aircraft, ship, automobiles, Railway coaches etc.
  • It is a good conductor of electricity and heat. So it is used for making electrical cables.

Question 2.
Water is considered a great source of energy.
Answer:

  • Water is considered a great source of energy.
  • It is used for producing hydro-electric power.
  • It is used for drinking, bathing, and Hydroelectricity.
  • Without water, all living things should not live.
  • So it is considered a great source of energy.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

VIII. Answer in a paragraph

Question 1.
Explain the different types of renewable resources.
Answer:

  • A renewable resource is used repeatedly and replaced naturally. It will not produce pollution.
  • Ex: Solar energy, Wind energy and hydropower.

Solar energy:

  • Solar energy is the energy in the form of heat and light Produced by the sun.
  • It is not harmful to the environment.
  • Photovoltaic devices or solar cells, directly convert solar energy into electricity.
  • India, china, Japan, Italy and the USA are the Major utilizers of solar energy.

Wind energy:

  • Wind energy is one of the most economical energy technologies.
  • Modem wind turbines with three blades turning wind into electricity.
  • USA, China, Germany, Spain, India, UK, Canada, and Brazil are the major wind energy-producing countries.

Hydropower:

  • Hydroelectricity is generated from moving water with high velocity and great falls with the help of turbines and dynamos.
  • China, Canada, Brazil, USA, Russia, India, Norway and Japan are some countries producing hydroelectricity.

Question 2.
Describe the non-metallic resources.
Answer:

  • Non-metallic resources do not comprise of any metals.
  • They are good conductors of heat and electricity.
  • Example: mica, limestone, gypsum, dolomite, phosphate etc.

Mica:

  • Muscovite and Biotite are the common ores of Mica.
  • It is used in electrical and electronics industry and used for making lubricating oils and decorative wallpapers.
  • China, Russia, Finland, USA, Turkey and Korea are the leading producers of mica.

Limestone:

  • Limestone is a sedimentary rock composed by skeletal fragments of marine organisms.
  • It is used for facing stone, floor tiles, stair treads, windows sills.
  • It is also used in smelting and metal refining process and portland cement production.
  • China, USA, India, Russia, Brazil and Japan are the leading producers of limestone. Tamil Nadu produce over 3/4 of total limestone in India.

Question 3.
What are the different types of fossil fuel resources? Explain them.
Answer:

  • Fossil fuel resources are formed from the remains of dead plants and animals.
  • It is formed from hydrocarbon. Ex: Coal, petroleum, and natural gas.

Coal:

  • Coal forms when dead plant matter is converted into peat. Electricity produced from coal is called ‘Thermal power’.
  • It is classified into 4 types based on carbon content.
    1. Anthracite 2. Bituminous 3. Lignite 4. Peat
  • The leading coal producers of the world is China.

Petroleum:

  • Petroleum is found between the layers of rocks and is drilled from oil fields located in coastal areas.
  • It produces a variety of products like diesel, petrol, kerosene, wax, plastics, and lubricants. It is called Black Gold. The chief petroleum-producing countries are Saudi Arabia, Iran, Iraq, and Qatar.

Natural Gas:

  • Natural gas is found with petroleum deposits. It can be used as a domestic and industrial fuel.
  • The natural gas reserves found in the USA, Russia, Iran, and Qatar.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

IX. Activity

Question 1.
Mark the metallic resources on the given outline map of the world.
Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources 1
Question 2.
Crossword puzzle
Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources 2
Across:
2. The leading coal producers of the world
4. Considered as a great source of energy
5. Precious metal like gold
6. Used as an insulating material in the electrical industry
Down:
1. Used in making electrical batteries
2. Good conductor of heat and electricity
3. The largest producer of gold in India
5. Produces energy in the form of heat and light
Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources 3

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

Samacheer Kalvi 7th Social Science Resources Additional Questions

I. Choose the correct answer:

Question 1.
______ are the non-living parts of an environment.
(a) Biotic resources
(b) Abiotic resources
(c) Both
(d) None
Answer:
(b) Abiotic resources

Question 2.
______ is not harmful to the environment.
(a) Sotar energy
(b) Wind energy
(c) Hydropower
(d) None of these

Question 3.
Kamuthi solar power project is situated in ______ district in Tamil Nadu.
(a) Madurai
(b) Tirunelveli
(c) Ramanathapuram
(d) Kancheepuram
Answer:
(c) Ramanathapuram

Question 4.
______ ¡s considered as a great source of energy.
(a) Air
(b) Wind
(c) Land
(d) Water
Answer:
(d) Water

Question 5.
_______ resources are the type of resources that are composed of metals.
(a) Metallic
(b) Non-metallic
(c) Both
(d) None
Answer:
(a) Metallic

Question 6.
Iron ores found at _______ in Tamil Nadu.
(a) Shervaroy hills
(b) Kanjamalai
(c) Palani hills
(d) None of these
Ans:
(b) Kanjamalai

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

II. Fill in the blanks:

  1. _________ are resources that exist without the action of humankind.
  2. _________ resources harvested and used rationally will not produce pollution.
  3. The installed capacity of the Kamuthi solar power project is _________ MW.
  4. Hydro electric power is a _________ resource.
  5. _________ is the largest producer of hydro-electricity.
  6. _________ is regarded as a symbol of prosperity and a form of wealth.
  7. _________ has a wider variety of uses that gold.

Answers:

  1. Natural resources
  2. Renewable
  3. 648
  4. Renewable
  5. China
  6. Gold
  7. Silver

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

III. Match the following:

  1. Gold – (a) electrical batteries
  2. Silver – (b) Black Gold
  3. Manganese – (c) Sedimentary rock
  4. Petroleum – (d) Mexico
  5. Limestone – (e) China

Answers:

  1. e
  2. d
  3. a
  4. b
  5. c

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

IV. Consider the following statements: Tick the appropriate answer

Question 1.
Assertion (A) : Fossil fuel resources are normally formed from the remains of dead plants and animals.
Reason (R) : They are often referred to as fossil fuels and are formed from hydrocarbon.
(a) A and R are correct and R explains A
(b) A and R are correct but R does not explain A
(c) A is incorrect but R is correct
(d) Both A and Rare incorrect
Answer:
(a) A and R are correct and R explains A

Question 2.
Assertion (A) : Mica is used as an insulating material in the electrical industry.
Reason (R) : Non-metallic resources are hard substances, and are good conductors of heat and electricity.
(a) A and R are correct and R explains A
(b) A and R are correct but R does not explain A
(e) A is incorrect but R is correct
(d) A is correct but R is incorrect
Answer:
(d) A is correct but R is incorrect

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

V. Answer in one or two sentences

Question 1.
What are the importance of resources?

  1. Natural resources satisfy the daily needs of man such as food, clothing, and shelter.
  2. Natural resources also contribute immensely to boost up a nation’s economy.

Question 2.
What is renewable resources?
Answer:
A renewable resource is a resource which can be used repeatedly and replaced naturally. Renewable resources harvested and used rationally will not produce pollution. The use of renewable resources and energy sources is increasing worldwide.
Example: solar energy, wind energy, and hydropower.

Question 3.
Write a note on Kamuthi Solar Project.
Answer:
Kamuthi solar power project is one of the largest solar power projects in the world. It is situated in Ramanathapuram District in Tamilnadu. The Kamuthi solar power project was completed on 21st September 2016. The installed capacity of this project is 648 MW.

Question 4.
Describe the major wind farms in India.
Answer:
Wind Forms:

  1. Muppandal
  2. Jaisalmer
  3. Brahmanvel
  4. Dhalgaon
  5. Damanjodi

Question 5.
What are Non-renewable resources?
Answer:
Natural resources that once consumed and cannot be replaced are called non-renewable resources. Continuous consumption of non-renewable resources ultimately leads to exhaustion. Examples of non-renewable resources include fossil fuels such as coal, petroleum, natural gas, and mineral resources such as iron, copper, bauxite, gold, silver, and others.

Question 6.
What are the types of Non-renewable resources?
Non-renewable resources can be divided into three types. They are:

  • Metallic resources
  • Non – Metallic resources
  • Fossil fuel resources

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

VI. Answer the following in detail

Question 1.
What are the types of resources on the basis of origin?
Answer:
On the basis of origin, resources may be divided into two types. They are:

  1. Biotic resources
  2. Abiotic resources

1. Biotic resources:
Biotic resources are found in the biosphere which are obtained from living and organic materials. It includes forests, crops, birds, animals, fishes, man and materials that can be obtained from them. Fossil fuels such as coal and petroleum are also included in this category because they are formed from decayed organic matter.

2. Abiotic resources:
Abiotic resources are the non-living parts of an environment. Examples of abiotic resources include land, water, air, sunlight and heavy metals including ores such as gold, iron, copper, silver etc.

Question 2.
Briefly explain any four of the metallic resources.
Answer:
Metallic resources are the type of resources that are composed of metals. These are hard substances, which are good conductors of heat and electricity. Examples for metallic resources are iron, copper, gold, bauxite, silver, manganese, etc.

Iron: Iron is the fourth most common element in the Earth’s crust and the most widely available metal. Magnetite and hematite are the common ore for iron, which occurs normally in the rocks of the crust.

Copper: Copper is one of the first metals known and used by man. Copper ranks as the third most consumed industrial metal in the world after Iron and Aluminium. Copper is a good conductor of heat and electricity. Chile is the world’s number one country in the production of copper.

Gold: It is a rare and precious metal. Hence, it has a high demand in world markets. Formerly, it was used for minting coins, but now it is used for making ornaments and in dentistry. It is regarded as a symbol of prosperity and a form of wealth. China is the world’s largest producer of gold.

Silver: Silver is also a precious metal like gold. It has a wider variety of uses than gold. It is used in making jewellery, dentistry, photographic goods, the electroplating industry, and in the manufacture of luxury goods. Mexico is the world’s leading silver producer.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources

VII. Give reason.

Question 1.
Manganese is used in drafting electrical batteries.
Answer:
Manganese is used in making electrical batteries. It is also used as colouring material in bricks, pottery, floor tiles.

Question 2.
Silver is also a precious metal like Gold.
Answer:
Silver is also a precious metal like gold. It has a wider variety of uses than gold. It is used in making jewellery, dentistry, photographic goods, the electroplating industry, and in the manufacture of luxury goods.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 1 Resources Read More »

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

You can Download Samacheer Kalvi 7th Social Science Book Solutions Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

Samacheer Kalvi 7th Social Science Tourism Textual Evaluation

I. Choose the correct answer:

Question 1.
The oldest type of tourism is
(a) Religious
(b) Historical
(c) Adventure
(d) Recreational
Answer:
(a) Religious

Question 2.
In which state is the Kaziranga national park located.
(a) Rajasthan
(b) West Bengal
(c) Assam
(d) Gujarat
Answer:
(c) Assam

Question 3.
Which one of the following is not a beach of India?
(a) Goa
(b) Cochin
(c) Kovalam
(d) Miami
Answer:
(d) Miami

Question 4.
Which of the following is not a bird sanctuary in India?
(a) Nal sarovor in Gujarat
(b) Koonthakulam in Tamil Nadu
(c) Bharatpur in Rajasthan
(d) Kanha in Madhya pradesh
Answer:
(d) Kanha in Madhya pradesh

Question 5.
In which district courtallam waterfalls is located?
(a) Dharmapuri
(b) Tirunelveli
(c) Namakkal
(d) Theni
Answer:
(b) Tirunelveli

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

II. Fill in the blanks

  1. The three main components of tourism together known as _________
  2. Gastronomy refers to an aspect of _________ tourism.
  3. Suruli falls is also called as _________
  4. The second largest urban beach is _________
  5. Expansion of TAAJ _________

Answers:

  1. A3 concept
  2. cultural
  3. cloud land falls (or) Meghamati falls
  4. Marina beach
  5. Travel Agents Association of India

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

III. Circle the Odd one

Question 1.
Transport, Attraction, Accommodation, Amenities
Answer:
(Transport) Attraction, Accommodation, Amenities

Question 2.
Nainital, Shillong, Munnar, Digha
Answer:
Nainital, Shillong, Munnar, (Digha)

Question 3.
Corbett, Sundarbans, periyar, Mayani
Ans.
Corbett, Sundarbans, periyar, (Mayani)

Question 4.
Hogenakal, Kumbakkari, Suruli, Kalakad
Answer:
Hogenakal, Kumbakkari, Suruli, (Kalakad)

Question 5.
Rishikesh, Ladakh, Gulmarg, Kotagiri
Answer:
Rishikesh, Ladakh, Gulmarg, (Kotagiri)

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

IV. Match the following

  1. Anamalai Hills – West Bengal
  2. Monkey falls – Goa
  3. Darjeeling – Coimbatore
  4. Nature’s Haven – Top slip
  5. Aguda Beach – Javadi

Answers:

  1. Anamalai hills – Top slip
  2. Monkey falls – Coimbatore
  3. Darjeeling – West Bengal
  4. Nature’s Haven – Javadi
  5. Aguda Beach – Goa

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

V. Consider the following statement and tick (✓) die appropriate answer

Question 1.
Assertion (A) : Tourism is an essential activity for the life Of society.
Reason (R): its direct impact on the social-cultural, education, and economic sector of the nation.
(a) A and R are correct and A explains R
(b) A and R are correct but A does not explain R
(c) A is correct but R is correct
(d) Both A and R are in Correct
Answer:
(a) A and R are correct and A explains R

Question 2.
Assertion (A) : One of the most popular beaches in Goa Calangute is a treat for adventure sports activities.
Reason (R) : Foreigners throng the beaches
(a) A and R are correct and A explain R
(b) A and R are correct but A does not explain R
(c) A is incorrect but R is correct
(d) Both A and R are incorrect
Answer:
(a) A and R are correct and A explains R

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

VI. Answer the following briefly

Question 1.
Define Tourism.
Answer:

  1. The word tourist was derived from an old English word “tourian” which refers to a person who travels out of his usual environment for not more than one year and less than 24 hours.
  2. The purpose of travel may be religious, recreation, business, historical and cultural.

Question 2.
Write a short note on ECO Tourism.
Answer:

  1. Ecotourism typically involves travel, to destinations where plants and animals thrive in a naturally preserved environment.
  2. Amazon rain forest, African forest safari, trekking in the slopes of the Himalayas are the famous incredible Eco-friendly attractions.

Question 3.
What are the basic elements of Tourism?
Answer:
Certain elements are fundamental to attract tourists as travel destinations. They are:

  1. Pleasant weather
  2. Scenic beauty
  3. Historical and cultural monuments

Question 4.
Name any five hill stations in India.
Answer:

  1. Kodaikanal, Ooty
  2. Nainital, Mussoorie
  3. Darjeeling
  4. Gulmarg
  5. Shillong

Question 5.
Name any five beaches in Tamil Nadu.
Answer:

  1. Kanyakumari beach
  2. Rameshwaram beach
  3. Golden beach
  4. Elliot beach
  5. Mahabalipuram beach

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

VII. Distinguish between

Question 1.
International Tourism and Historical Tourism
Answer:
International Tourism

  1. International tourism is to visit places of International importance.
  2. To gather knowledge about international culture and customs.
  3. Ex: Australia, Europe, America

Historical Tourism

  1. Historical tourism focuses on visiting historically important places.
  2. To gather knowledge about museums, monuments, archaeological areas, forts, temples etc.
  3. Ex: Tajmahal of India, Pyramids of Egypt.

Question 2.
Religious Tourism and Adventure Tourism
Answer:
Religious Tourism

  1. Religious tourism is one of the oldest type of tourism.
  2. People travel individually or in groups for a pilgrimage to a religious location like temples, churches, mosques etc.
  3. Ex: Kasi by Hindus, Jerusalem by Christians and Mecca by Muslims.

Adventure Tourism

  1. Adventure tourism is involving travel to remote or exotic places to take part in physically challenging outdoor activities.
  2. People travel to skydive, bungee jumping rafting and mountaineering etc.
  3. Skydive in Australia, bungee jumping in New Zealand, a mountaineer in the Himalayas.

Question 3.
Attraction and Accessibility
Answer:
Attraction

  1. Attraction comprises two types as natural and cultural.
  2. Attractions like landscape seascape, beaches, forests, historic monuments, fairs and festivals decided the travel.

Accessibility

  1. Accessibility means reachability to tourist destinations through the transportation of road, rail, water and air.
  2. Transport decides the cost and time of travel.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

VIII. Answer the following questions in detail

Question 1.
Explain the Geographical components of Tourism.
Answer:

  1. Landforms: Mountains, Plateaus, Canyons, Valleys, Caves, Cirques, Sand dunes, Coral reefs, Cliffs, etc.,
  2. Water: Rivers, Lakes, Waterfalls, Hot springs and Geysers, Snow and Glacier, Water Currents, Tides and Waves.
  3. Vegetation: Forest, Grasslands, Moors, Deserts etc.
  4. Climate: Sunshine, Clouds, Admirable Temperature, Rain, and Snow.
  5. Animal life:-
    • Wildlife: Birds, Game Reserves, Zoos.
    • Hunting and Fishing
  6. The settlement features:
    • Towns, Cities, Villages
    • Historical remains and Monuments
  7. Culture:-Ways of life, traditions, folklore, arts, and crafts.

Question 2.
Write briefly about the waterfalls in Tamil Nadu.
Answer:

  1. Mountains and rivers of Tamil Nadu combined together created many endearing waterfalls.
  2. Waterfalls in Tamil Nadu with their inspiring natural wonders attract many tourists. A trek amidst thick green trees, steep hills, and a bath in the gushing water are most rejuvenating.
  3. Here is the list of famous waterfalls of Tamil Nadu.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism 1

Question 3.
Describe the Environment Impact of Tourism.
Answer:
Environmental Impact of Tourism
The quality of the environment is essential for tourism. The tourism industry created several positive and negative impacts on the environment.

Positive Impacts:

  1. Direct financial Contributions
  2. Contributions to government revenues
  3. Improved environmental management and planning
  4. Increasing environmental awareness
  5. Protection and preservation of the environment

Negative Impacts

1. Depletion of Natural Resources

  • Water resources
  • Local resources
  • Land degradation

2. Pollution

  • Air and Noise Pollution
  • Solid Waste and Littering
  • Sewage

3. Destruction and Alteration of Ecosystem

  • Air
  • Water
  • Soil

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

IX. HOTS

Question 1.
Why do we like sightseeing so much?
Answer:

  • We like sightseeing and scenic attraction because scenery consisting of mountains, lakes, waterfall, glacier forests and deserts to attracting people to visit them; It’s immense beauty gives pleasure to the people.
  • It also refreshes the minds of the people.

Question 2.
What are the ways to protect the sanctuaries?
Answer:

  • Always follow the instructions given by the sanctuaries.
  • Do not carry any plastic, firearms, crackers, into the sanctuaries.
  • Respect and maintain a safe distance from wild animals in the sanctuary.
  • Use bio-degradable materials while visiting protected areas.

Question 3.
List any five reasons for travelling.
Answer:

  • The purpose of travel may be religious, recreation, business, historical, and cultural.
  • People may travel to learn something specific.
  • People want to see new places.
  • To enjoy and brings people together.
  • To relax from the routine job.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

X. Activity

  • This activity should be done by students under the supervision of the subject teacher.
  • The students are grouped with six members in a group.
  • Each student will discuss in the group about their last tour. Each group will collect photographs and information.
  • The information will be shared in the class as well as displayed on the notice board of the class room.

Answer:
Activity to be done by the students themselves

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

Samacheer Kalvi 7th Social Science Tourism Additional Questions

I. Choose the correct answer:

Question 1.
________ are historic monuments and other intellectual creations.
(a) Natural attraction
(b) Cultural attraction
(c) Social attraction
(d) None of these
Answer:
(b) Cultural attraction

Question 2.
Tajmahal of India and the Pyramids of Egypt are examples of
(a) Historical Tourism
(b) Cultural tourism
(c) Eco-tourism
(d) Adventure tourism
Answer:
(a) Historical Tourism

Question 3.
Gastronomy refers to an aspect of
(a) Religious tourism
(b) Cultural tourism
(c) Historical tourism
(d) Eco-tourism
Answer:
(b) Cultural tourism

Question 4.
________ attract attention for their exclusive variety of birds.
(a) Bird sanctuaries
(b) Wildlife sanctuaries
(c) Both ‘a’ and ‘b’
(d) None of these
Answer:
(a) Bird sanctuaries

Question 5.
Push factors in Tourism are
(a) Amenities
(b) Accessibility
(c) Prestige
(d) Attraction
Answer:
(c) Prestige

Question 6.
_______ earns the largest share of income from tourism in India.
(a) Kerala
(b) Goa
(c) Rajasthan
(d) Tamil Nadu
Answer:
(d) Tamil Nadu

Question 7.
Suruli Falls is located in ________ district.
(a) Namakkal
(b) Tirunelveli
(c) Theni
(d) Dharmapuri
Answer:
(c) Theni

Question 8.
________ is a lovely place to hand around with friends, families, and kids.
(a) Beach
(b) Temple
(c) Park
(d) Sanctuary
Answer:
(a) Beach

Question 9.
________ is a country known for its gentle (or) hospitality to all visitors.
(a) USA
(b) the UK
(c) London
(d) India
Answer:
(d) India

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

II. Fill in the blanks:

  1. _______ has become an important source of income for many regions.
  2. _______ type of tourism aims at enjoyment, amusement or pleasure are mainly for a fun activities.
  3. _______ is a very important factor in tourism.
  4. Few of the amazing waterfalls are in swing during the _______ season.
  5. Pull factors in Tourism are _______
  6. _______ in Tamil Nadu with its inspiring natural wonders attracts many tourists.
  7. The tourism industry created several positive and negative impacts on the _______

Answers:

  1. Tourism
  2. Recreational tourism
  3. Scenic attraction
  4. Monsoon
  5. Amenities
  6. Waterfalls
  7. environment

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

III. Circle the Odd one

Question 1.
Religious tourism, Cultural tourism, Adventure tourism, Environment
Answer:
Religious tourism, Cultural tourism, Adventure tourism, [Environment]

Question 2.
Mountains, Sunshine, Canyons, Valleys
Answer:
Mountains, [Sunshine], Canyons, Valleys

Question 3.
Forest, Grasslands, Clouds, Moors
Answer:
Forest, Grasslands, [Clouds], Moors

Question 4.
Water resources, Local resources, Land degradation, Amusement park
Answer:
Water resources, Local resources, Land degradation, [Amusement park]

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

III. Match the following

Question 1.

  1. Natural attraction – (a) Sand dunes
  2. Cultural attraction – (b) Grasslands
  3. Landforms – (c) Rain and snow
  4. Vegetation – (d) Historic monuments
  5. Climate – (e) Landscape

Answers:

  1. – e
  2. – d
  3. – a
  4. – b
  5. – c

Question 2.

  1. Amritsar – (a) Kerala
  2. Darjeeling – (b) Uttarakhand
  3. Munnar – (c) Maharashtra
  4. Corbett National Park – (d) West Bengal
  5. Mayani Bird Sanctuary – (e) Punjab

Answers:

  1. – e
  2. – d
  3. – a
  4. – b
  5. – c

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

IV. Consider the following statements: Tick the appropriate answer

Question 1.
Assertion (A) : Recreational Tourism aims at enjoyment, amusement or pleasure are mainly for fun activities.
Reason (R) : India is a country known for its gentle hospitality with spicy food and culture.
(a) A and R are correct and A explain R
(b) A and R are correct but A does not explain R
(c) A is in correct but R is correct
(d) Both A and R are in Correct
Answer:
(b) A and R are correct but A does not explain R

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

V. Answer in one or two sentences

Question 1.
What are the types of tourism?
Answer:
Types of Tourism:

  • Religious tourism
  • Cultural tourism
  • Historical tourism
  • Eco-Tourism
  • Adventure tourism
  • Recreational tourism

Question 2.
Write a short note on Historical tourism.
Answer:
It focuses on visiting historically important places like museums, monuments archaeological areas, forts, temples, and so on. Angkor wat of Cambodia, Tajmahal of India, and Pyramids of Egypt are some of the examples to quote for Historical Tourism

Question 3.
Write a note on

  1. Inbound Tourism
  2. Outbound Tourism

Answer:

  1. Inbound Tourism: Touring within the native country.
  2. Outbound Tourism: Touring in foreign countries.

Question 4.
What are the game reserves?
Answer:
Game Reserves: An area of land set aside for the protection of wild animals.

Question 5.
List any four famous religious spots of India.
Answer:

  • Rameswaram – TamilNadu
  • Kanchipuram – Tamil Nadu
  • Varanasi(Kasi) – Uttarpradesh
  • Saranath – Uttarpradesh

Question 6.
WrIte the abbreviation of

  1. ITC
  2. IATA
  3. TAAI
  4. TTDC

Answer:

  1. ITC – Inclusive Tour Charter
  2. IATA – International Air Transport Association
  3. TAAI – Travel Agents Association of India
  4. TTDC – Tamil Nadu Tourism Development Corporation

Question 7.
What is Wildlife and Bird Sanctuaries?
Answer:
India possesses a wide range of forests and grasslands. The diversity of these lands makes it one of the hotspots for flora and fauna. The dense and dark forest of Indian States provides suitable habitat for a wide and unique variety of animals and birds.

Bird sanctuaries attract attention for their exclusive variety of birds. Diverse range of climates of India invites birds from remote places to feed, breed, and to nurture their young ones in the Indian bird sanctuaries.

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

Question 8.
Answer:
Write any four bird sanctuaries in Tamil Nadu.
Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism 2

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

VI. Answer the following in detail

Question 1.
What are the basic components of tourism? Briefly explain it.
Answer:
The three main components of tourism are

  • Attraction
  • Accessibility
  • Amenities.

These three components are together known as A3 concept.

Attraction:
Attractions mainly comprise of two types such as:

  • Natural attraction
  • Cultural attraction

Accessibility:
Accessibility means reachability to a particular place of attraction through various means of transportation such as road, rail, water and air. Transport decides the cost of travel and the time consumed in reaching or accessing a specific attraction.

Amenities:
Amenities are the facilities that cater to the needs of a tourist.

  1. Accommodations in terms of hotels, restaurants, cafes and other staying units.
  2. Travel organizers, Tour operators and Travel Agents
  3. Foreign exchange centres, passport and visa agencies
  4. Sectors related to Travel Insurance, Safety and Security

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism

Question 2.
Explain the tourism attractions in India.
Answer:

  1. India is a country known for its gentle hospitality with spicy food and culture.
  2. Visitor friendly traditions with varied lifestyle, culture, heritage, colourful fairs, and festivals are abiding attractions for the tourists.
  3. All types of landform, varied climates, rich resources for eco and adventure tourism are the versatile specialty of India.
  4. Technological parks and science museums, pilgrimage centers with wonderful art and architecture are an added advantage for tourists.
  5. Yoga, Ayurveda, and Natural remedial Health resorts attract tourists from all over the world.

Question 3.
Briefly Explain Waterfall in India.
Answer:
In India, there are many spectacular and wonderful waterfalls covered by dense forests, huge walls of rock, and lush green trees. Among these waterfalls, some are seasonal, while some are perennial. Few of the amazing waterfalls are in swing during the monsoon season. This season brings a lot of tourists to these bubbling waterfall sites. Notable waterfalls of India are given below:
Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism 3

Samacheer Kalvi 7th Social Science Geography Solutions Term 2 Chapter 2 Tourism Read More »

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

You can Download Samacheer Kalvi 7th Social Science Book Solutions Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

Samacheer Kalvi 7th Social Science The Mughal Empire Textual Evaluation

I. Choose the correct answer:

Question 1.
Who introduced the Persian style of architecture in India?
(a) Humayun
(b) Babur
(c) Jahangir
(d) Akbar
Answer:
(b) Babur

Question 2.
In which battle did Akbar defeat Rana Pratap?
(a) Panipat
(b) Chausa
(c) Haldighati
(d) Kanauj
Answer:
(c) Haldighati

Question 3.
Whose palace in Delhi was destroyed by Sher Shah?
(a) Babur
(b) Humayun
(c) Ibrahim Lodi
(d) Alam Khan
Answer:
(b) Humayun

Question 4.
Who introduced Mansabdari system?
(a) Sher Sha
(b) Akbar
(c) Jahangir
(d) Shah Jahan
Answer:
(b) Akbar

Question 5.
Who was the revenue minister of Akbar?
(a) Birbal
(b) Raja Bhagwan Das
(c) RajaTodarmal
(d) Raja Man Singh
Answer:
(b)Raja Todarmal

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

II. Fill in the Blanks

  1. _______ was the name of the horse of Rana Pratap.
  2. _______ was a hall at Fatehpur Sikri where scholars of all religions met for a discourse.
  3. The Sufi saint who received Akbar’s utmost respect was _______
  4. During the reign of _______, the Zabti system was extended to the Deccan provinces.
  5. _______ were tax-free lands given to scholars and religious institutions.

Answers:

  1. Chetak
  2. Ibadatkhana
  3. Salim Chishti
  4. Shah Jahan
  5. Suyurghal

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

III. Match the following

Question 1.

  1. Babur – Ahmednagar
  2. Durgavati – Jaipur
  3. Rani Chand Bibi – Akbar
  4. Din Ilahi – Chanderi
  5. Raja Man Singh – Central Province

Answer:

  1. Babur – Chanderi
  2. Durgavati – Central Province
  3. Rani Chand Bibi – Ahmednagar
  4. Din Ilahi – Akbar
  5. Raja Man Singh – Jaipur

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

IV. True or False

  1. Babur inherited Farghana, a small kingdom in Central Asia.
  2. Humayun succeeded in recapturing Delhi in 1565.
  3. Aurangzeb married a girl of a notable Rajput family.
  4. Jahangir ordered the execution of Sikh leader Guru Arjun for helping his son Khusrau.
  5. During Aurangzeb’s reign, architecture received much patronage.

Answers:

  1. True
  2. False
  3. False
  4. True
  5. False

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

V. Consider the following statements. Tick (✓) the appropriate answer.

Question 1.
Assertion (A): The British established their first factory at Surat.
Reason (R): Jahangir granted trading rights to the English.
(a) R is the correct explanation of A.
(b) R is not the correct explanation of A.
(c) A is wrong and R is correct.
(d) (A) and (R) are wrong.
Answer:
(a) R is the correct explanation of A

Question 2.
Assertion (A): Aurangzeb’s intolerance towards other religions made him unpopular among people.
Reason (R): Aurangzeb re-imposed the jizya and pilgrim tax on the Hindus.
(a) R is the correct explanation of A.
(b) R is not the correct explanation of A.
(c) A is wrong and R is correct.
(d) (A) and (R) are wrong.
Answer:
(a) R is the correct explanation of A

Question 3.
Find out the correct statements
(i) Kamran was the son of Afghan noble, Hasan Suri, ruler of Sasaram in Bihar.
(ii) Akbar abolished the jizya poll tax on non-Muslims and the tax on Hindu pilgrims.
(iii) Aurangzeb acceded the throne after killing his three brothers.
(iv) Prince Akbar entered into a pact with Shivaji’s son Shambuji in the Deccan.
(a) (I), (II) and (III) are correct
(b) (II), (III) and (IV) are correct
(c) (I), (III) and (IV) are correct
(d) (II), (III), (IV) and (I) are correct
Answer:
(b) (II), (III) and (IV) are correct

Question 4.
Arrange the battles in chronological order

  1. Battle of Khanwa
  2. Battle of Chausa
  3. Battle of Kanauj
  4. Battle of Chanderi

Answer:

  1. Battle of Khanwa (1527)
  2. Battle of Chanderi (1528)
  3. Battle of Chausa (1539)
  4. Battle of Kanauj (1540)

Question 5.
Arrange the following administrative divisions in descending order

  1. Sarkars
  2. Parganas
  3. Subhas

Answer:

  1. Subhas
  2. Sarkars
  3. Parganas

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

Match the lather and son
Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire 1
Answer:
Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire 2

VI. Give a short answer

Question 1.
Write the circumstance that led to the Battle of Panipat in 1526.
Answer:
Babur did not have any ambition beyond Punjab till 1524. Then a greater opportunity came knocking. Dilawar Khan, who was Daulat Khan Lodi’s son, and Alam Khan, who was the uncle of Sultan of Delhi, arrived in Kabul to seek Babur’s help in removing Ibrahim Lodi from power. Babur defeated Ibrahim Lodi in the famous Battle of Panipat in 1526.

Question 2.
Mention the Humayun recapture the Delhi throne in 1555.
Answer:
Sher Shah defeated Humayun at Chausa (1539) and again at Kanauj (1540). Humayun, defeated and overthrown, had to flee to Iran. With the help of the Persian ruler Shah Tahmasp of the Safavid dynasty, Humayun succeeded in recapturing Delhi in 1555.

Question 3.
Write a note on the Mansabdari system.
Answer:
Akbar introduced the Mansabdari system. According to this system, the nobles, civil and military officials were combined to form one single service. Everyone in the service was given a mansab, meaning a position or rank. A Mansabdar was a holder of such a rank. Mansabdar rank was dependent on Zat and Sawar.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

VII. Answer the following

Question 1.
Describe the land revenue administration of the Mughals.
Answer:
Land Revenue Administration:
(i) Land revenue administration was toned up during the reign of Akbar. Raja Todar Mai, Revenue Minister of Akbar, adopted and refined the system introduced by Sher Shah.

(ii) According to Zabt system, after a survey, lands were classified according to the nature and fertility of the soil. The share of the state was fixed at one-third of

(iii) the average produce for 10 years.

(iv) The Mughal emperors enforced the old iqta system, renaming it jagir. It is a land tenure system developed during the period of Delhi Sultanate. Under the system, the collection of the revenue of an area and the power of governing

(v) it were bestowed upon a military or civil official now named Jagirdar.

(vi) Every Mansabdar was a Jagirdar if he was not paid in cash. The Jagirdar collected the revenue through his own officials.

(vii) Those appointed to collect the revenue from the landholders were called zamindars. Zamindars collected taxes and maintained law and order with the help of Mughal officials and soldiers.

(viii) The local chieftains and little kings were also called zamindars.

Question 2.
Estimate Akbar as a patron of learning.
Answer:

  • Akbar was a great patron of learning. His personal library had more than four thousand manuscripts.
  • He patronised scholars of all beliefs and all shades of opinions.
  • He extended his benevolence to authors such as Abul Fazl, Abul Faizi, and Abdur Rahim Khan-i-Khanan, the great storyteller Birbal, competent officials like Raja Todar Mai, Raja Bhagwan Das, and Raja Man Singh.
  • The great composer and musician Tansen and artist Daswant adorned Akbar’s court as well.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

VIII. HOTs

Question 1.
Shah Jahairs time witnessed the climax of Mughal splendour. Support this statement in comparison with the times of other Mughal rulers.
Answer:
(i) The famous peacock throne, covered with expensive jewels, was made during Shah Jahan’s time for the emperor to sit on. The world-famous Taj Mahal, the Moti Masjid, the pearl mosque at Agra, the Jama Masjid of Delhi, the Diwan-i- Khas and Diwan – i Am in his palace exhibit his taste for Art and Architecture.

(ii) Babur built many structures at Agra, Biana, Dholpur, Gwalior and Kiul in the Persian style of Architecture.

(iii) Sher shah built a mausoleum at Sasaram. Diwan-i-khas, Diwan-i-Am, Panch Mahal Rang Mahal, Salim Chishti’s tomb and Buland Darwaza were built during Akbar’s time.

(iv) Jahangir completed Akbar’s tomb at Sikandara and the beautiful building containing the tomb of Itmad-ud-daula, at Agra.

(v) During Aurangzeb’s reign, architecture did not receive much patronage.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

Map

Mark the extent of the Mughal Empire during the reign of Akbar and Aurangzeb with a special focus on important battlefields.
Answer:
Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire 3

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

IX. Activity
Collect information about the scholars in Akbar’s court and conduct a mock llxiikitfi khana in the class.
Answer:
Scholars of Akbar’s court:

  • Tansen – Renowned Singer
  • Fakir Aziao Din – Religious Advisor and Minister
  • Faizi – Minister of education
  • Mulla – Do – Piyaza – Minister of affairs
  • Raja Birbal – Minister of foreign affairs
  • Raja Todar Mai – Finance Minister
  • Abu’l Fazl ibn Mubarak – Grand Vizier

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

Samacheer Kalvi 7th Social Science The Mughal Empire Additional Questions

I. Choose the correct answer:

Question 1.
______ was the founder of the Mughal Empire in India.
(a) Humayun
(b) Babur
(c) Akbar
(d) Sher Shah
Answer:
(b) Baburl

Question 2.
Babur inherited ______ a small kingdom in central Asia.
(a) Farghana
(b) Chanderi
(c) Agra
(d) Delhi
Answer:
(a) FarghanaI

Question 3.
Babur led his first expedition towards ______
(a) Kabul
(b) China
(c) India
(d) Turkey
Answer:
(c) India

Question 4.
Babur chose his eldest son, ______ as his heir.
(a) Akbar
(b) Sher Shah
(c) Jahangir
(d) Humayun
Answer:
(d) Humayun

Question 5.
______ started the rule of Sur dynasty at Agra.
(a) Shah Jahan
(b) Muhammad Shah
(c) Akbar
(d) Slier Shah
Answer:
(d) Sher Shah

Question 6.
The memory of the gallant Rajput, ______ is treasured in Rajputara.
(a) Rana Pratap
(b) Rana Uday Singh
(c) Prithviraj Chauhan
(d) Rana Sanga
Answer:
(a) Rana Pratap

Question 7.
Akbar sent ______ of Jaipur as governor of Kabul once.
(a) Rana Pratap
(c) Raja Man Singh
(c) Raja Todarmal
(d) Rana Sanga
Answer:
(b) Raja Man Singh

Question 8.
______ after a struggle for power succeeded Jahangir.
(a) Akbar
(b) Aurangazeb
(c) Humayun
(d) Shah Jahan
Answer:
(d) Shah Jahan

Question 9.
______ assumed the title Alamgir (the conqueror of the world).
(a) Babur
(b) Akbar
(c) Aurangazeb
(d) Humayun
Answer:
(c) Aurangazeb

Question 10.
Shivaii proclaimed himself the ‘Emperor of Maratha’ state in ______
(a) 1674
(b) 1754
(c) 1685
(d) 1690
Answer:
(a) 1674

Question 11.
The towns and cities were administered by ______ during the Mughal administration.
(a) Subedar
(b) Kotwal
(c) Sarkar
(d) Wakil
Answer::
(b) Kotwal

Question 12.
______ were conferred hereditary rights over Zamin.
(a) Kotwals
(b) Subedars
(c) Zamindars
(d) Sarkars
Answer:
(c) Zamindars

Question 13.
The famous monument of Sher Shah’s reign was his mausoleum built at ______ in Bihar.
(a) Gaya
(b) Patna
(c) Nalanda
(d) Sasaram
Answer:
(d) Sasaram

Question 14.
The world-famous Taj Mahal is by the side of the river.
(a) Ganga
(b) Jumna
(c) the Brahmaputra
(d) Indus
Answer:
(b) Jumna

Question 15.
The Bibi Ka Maqbara in Aurangabad was built by Prince
(a) Akbar
(b) Humayun
(c) Babur
(d) Azam Shah
Answer:
(d) Azam Shah

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

II. fill in the blanks

  1. Babur was the great-grandson of ______.
  2. Zahir-ud-din means ______
  3. Mughal dynasty came to be established in India with ______ as its capital.
  4. Humayun’s trusted general ______ became the regent and ruled on behalf of Akbar.
  5. ______ a general of sur dynasty captured Agra and Delhi in 1556.
  6. Bairam Khan killed Hemu in the ______.
  7. Jahangir’s wife Mehr-un-nisa known as ______ was the real power behind the throne.
  8. ______, a representative of Kind James I of England, visited Jahangir’s court.
  9. ______ maintained law and order in the Mughal Administration.
  10. ______ was the number of horses and horsemen, a Mansabdar had to maintain.
  11. In Akbar’s court, the ______ missionaries were great favourites.

Answers:

  1. Timur
  2. Defender of faith
  3. Agra
  4. Bairam Khan
  5. Hemu
  6. Second battle of Panipat
  7. Nur Jahan
  8. Thomas Roe
  9. Kotwalsi
  10. Sawar
  11. Portuguese

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

III. Match the following

  1. Wakil – (a) In-charge of the army
  2. Wazir – (b) Chief judge
  3. Mir Bhakshi – (c) Prime Minister
  4. Mir Saman – (d) In-charge of revenue
  5. Qazi – (e) Royal house hoed

Answers:

  1. – c
  2. – d
  3. – a
  4. – e
  5. – b

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

IV. State true or false

  1. Babur was driven out from Farghana by Uzbeks.
  2. Kamran, Hindal and Askari were the brothers of Akbar.
  3. The fight Rani Chand Bibi put up impressed Mughal Army.
  4. The Sikh shrine Haramandir Sahib was built in Amritsar.
  5. The mansabdars were paid a low salary by the Emperor.

Answers:

  1. True
  2. False
  3. True
  4. True
  5. False

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

V. Consider the following statements Tick (✓) the appropriate answer:

Question 1.
Assertion (A): Bairam khan was murdered in Gujarat, allegedly at the instance of Hemu.
Reason (R): Akbar could not tolerate his dominance in the day-to-day governance of the kingdom.
(a) R is the correct explanation of A.
(b) A is wrong and R is correct
(c) A and R are wrong
(d) A is not the correct explanation of A
Answer:
(b) A is wrong and R is correct

Question 2.
Find out the correct statements.
i. Akbar was succeeded by Prince Salim, his son through a Rajput wife.
ii. The toleration of religion of Akbar’s time continued in Shah Jahan’s time.
iii. Aurangazeb suppressed the revolt of Bundelas Jats, Satnamis, and Sikhs.
iv. In the Mughal administration, Sadr-us-Sudr was the minister of Finance.
(a) i, ii, and iv are correct
(b) i and iii are correct
(c) ii and iv are correct
(d) i and ii are correct
Answer:
(b) i and iii are correct

Question 3.
Match the pairs (Akbar’s invasion).
(a) Fort of Chittoor – i. 1576
(b) Ranthambore – ii. 1568
(c) Battle of Haldighati – iii. 1569
Answer::
a – ii, b – iii, c – i

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

VI. Give short Answers

Question 1.
Where did Babur record his impressions about Hindustan?
Answer:
Babur recorded his impressions about Hindustan, its animals, plants and trees, flowers and fruits in his autobiography Tuzuk-i-Baburi.

Question 2.
Write a few sentences about the reign of Sher Shah.
Answer:
Sher Shah introduced an efficient land revenue system. He built many roads, and standardized coins, weights, and measures.

Question 3.
Why was Akbar’s defeat of Rani Durgavati hot appreciated?
Answer:

  1. Akbar’s defeat of Rani Durgavati, a ruler in the Central Province, is not appreciated, since the brave Rani did him no harm.
  2. Yet larged by his ambition to build an empire, Akbar had no consideration for the good nature of the ruler.

Question 4.
How did Akbar establish commercial access to Arabia, Southeast Asia, and China?
Answer:

  1. Akbar’s conquest of Gujarat helped him to establish control over Gujarat’s overseas trade with the Arabs and the Europeans.
  2. Akbar’s military campaigns in East Bihar and Odisha and victory over Bengal facilitated access to Southeast Asia and China.

Question 5
Write a brief account of Akbar’s military campaigns in the Northwest.
Answer:

  1. Akbar added Kandahar, Kashmir and Kabul to the Mughal Empire. His battles in the Deccan led to the annexation of Berar, Khandesh and parts of Ahmednagar.
  2. Under Akbar, the Mughal Empire extended from Kashmir in the north to the Godavari in the south, and from Kandahar in the west to Bengal in the east.

Question 6.
Why did the Mughals have to lose control over the trade routes to Afghanistan? Persia and Central Asia?
Answer:

  1. Jahangir ordered the execution of Sikh leader Guru Aijun (or Arjan) for helping his rebellious son Khusrau, who contested for the throne.
  2. This resulted in a prolonged fight between the Sikhs and the Mughals.
  3. As a result of this confrontation, the Mughals had to lose control over the trade routes to Afghanistan, Persia, and Central Asia.

Question 7.
Why was there a sustained resistance from Marathas in the Deccan to the Mughal?
Answer:
Some Maratha warriors, notably Shahji Bhonsle (Shivaji’s father), entered the services of the Deccan kingdoms and trained bands of Maratha soldiers to fight against the Mughals. So there was a sustained resistance in the Deccan to the Mughals from the Marathas too.

Question 8.
Narrate the circumstances under Aurangzeb become the ruler.
Answer:

  1. Aurangzeb, the last of the Great Mughals, started off his reign by imprisoning his old father.
  2. He assumed the title Alamgir (the Conqueror of the World). He reigned for 48 years.
  3. He was no lover of art like his grandfather Jahangir and architecture like his father Shah Jahan.

Question 9.
Why did Aurangzeb march to the Deccan in 1689?
Answer:
Aurangzeb’s rebellious son, Prince Akbar, joined the forces of Rajputs and created trouble for him. Prince Akbar entered into a pact with Shivaji’s son Shambuji in the Deccan. So Aurangzeb had to march to the Deccan in 1689.

Question 10.
Name the places where the British established their trade centers.
Answer:
The British established their trade centers at Madras (Chennai), Calcutta (Kolkata), and Bombay (Mumbai).

Question 11.
Describe the local administration of the Mughals.
Answer:
The towns and cities were administered by kotwals. Kotwals maintained law and order. The administration of villages was left in the hands of local village panchayats (informal institution of justice in villages). The Panchayatdars (jury) dispensed justice.

Question 12.
Write a short note on Mansabdars.
Answer:
(i) A man Sardar was a holder of a rank. Mansabdar rank was dependent on Zat and Sawar. Mansabdar’s salary was fixed on the basis of the number of soldiers each Mansabdar received ranging from 10 to 10,000.

(ii) The Mansabdars were paid a high salary by the Emperor. Before receiving the salary, a Mansabdar has to present his horsemen for inspection. Their horses were branded to prevent theft.

Question 13.
Name the famous buildings of Akbar’s time.
Answer:
The Diwan-i-Khas, Diwan-i-Am, Panch Mahal (pyramidal structure in five stories), Rang Mahal, Salim Chishti’s Tomb and Buland Darwaza were built during Akbar’s time.

Question 14.
Write a short note on Red Fort.
Answer:
Red Fort, also called Lai Qila, in Delhi was the residence of the Mughal emperors. Constructed in 1639 by Emperor Shah Jahan as the palace of his fortified capital Shahjahanabad. The Red Fort is named for its massive enclosing walls of red sandstone.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

VII. Answer the following

Question 1.
Given an account of the Religious policy of Akbar.
Answer:

  1. The Mughal emperors were the followers of Islam. Akbar was very liberal in his religious policy.
  2. In Akbar’s court, the Portuguese missionaries were great favourites.
  3. Akbar tried to include the good principles in all religions and formulated them into one single faith caftxl Din-I-Ilahi (divine faith).
  4. Ja.hpgir and Shah Jahan also followed the policy of Akbar. Aurangzeb rejected the liberal views of his predecessors.
  5. As we pointed out earlier, he re-imposed the jizya and pilgrim tax on the Hindus. His intolerance towards other religions made him unpopular among the people.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire

VIII. HOTS

Question 1.
Name a few famous monuments built during Mughal rule in Delhi.
Answer:
Alai Darwaza, Red Fort, Qutub Minar, Safdarjung Tomb, Humayun’s tomb, Isa Khan’s tomb.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 2 The Mughal Empire Read More »

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

You can Download Samacheer Kalvi 7th Social Science Book Solutions Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

Samacheer Kalvi 7th Social Science Media and Democracy Textual Evaluation

I. Choose the correct answer:

Question 1.
Which one of the following comes under print media?
(a) Radio
(b) Television
(c) Newspaper
(d) Internet
Answer:
(c) Newspaper

Question 2.
Which one of the following is the broadcast media?
(a) Magazines
(b) Journals
(c) Newspaper
(d) Radio
Answer:
(d) Radio

Question 3.
Which invention has brought the world closure?
(a) Typewriter
(b) Television
(c) Telex
(d) None of these
Answer:
(b) Television

Question 4.
Which is mass media?
(a) Radio
(b) Television
(c) Both a & b
(d) None of these
Answer :
(c) Both a & b

Question 5.
Why is it necessary for media to be independent?
(a) to earn money
(b) to encourage company
(c) to write balanced report
(d) none of these
Answer:
(c) to write balanced report

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

II Fill in the blanks

  1. _______ have made the ‘world smaller and closer.
  2. Every individual person is a medium of _______
  3. Printing press was invented by _______
  4. _______ is i code of values which govern our lives.
  5. _______ is the radio broadcast of the Government of India.

Answers:

  1. Mass media
  2. expression
  3. Johannes Gutenberg
  4. Ethics
  5. Akashvani

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

III. Match the following

Question 1.

  1. Narrowcast media – films
  2. Social media – posters
  3. Print media – seminar
  4. Web media – google web site
  5. Broadcast media – facebook

Answers:

  1. Narrowcast media – seminar
  2. Social media – Facebook
  3. Print media – posters
  4. Web media – google web site
  5. Broadcast media – films

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

IV. Consider the following statements Tick the appropriate answer

Question 1.
Assertion: Print media has been referred to as peoples University
Reason: They perform the role of public informer, educate, custodian of public interest.
(a) A is correct and R is the correct explanation of A
(b) A is correct and R is not the correct explanation of A
(c) A is wrong and R is Correct
(d) Both are wrong
Answer:
(a) A is correct and R is the correct explanation of A

Question 2.
Find the odd one
(a) newspapers
(b) magazine
(c) journals
(d) twitter
(e) posters
Answer:
(d) twitter

Question 3.
Consider the following statements and choose the correct answer form thftsSodes given below.
a. Media is generally the agency for inter-personal communication.
b. Media is a very powerful entity on the earth.
c. Media plays a prominent role in the formation of public opinion.
d. Media does not have any responsibility
i. a,b and c are correct
ii. a,c and d are correct
iii. b,c and d are correct
iv. a,b and d are correct
Answer:
i. a, b and c are correct

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

V. Answer in one or two sentences

Question 1.
What is media?
Answer:
Media is generally the agency for inter-personal communication. Media is in A every broadcasting and narrowcasting medium.

Question 2.
How does the public get the news about the decision that is taken in the Legislative Assembly?
Answer:
The procedure is as follows:

  1. After the discussion is over in the Legislative Assembly, a press conference called by the minister so as to pass on the necessary information.
  2. The Minister then explains all the steps decided and taken by the government to press and media personalities.
  3. The press and media personnel clarify any doubts related to the meeting
  4. All the information is published in the newspapers and shown on TV Channels

Question 3.
What is the importance of local media?
Answer:
Local media is important because it can generate quick and on-the-spot informal ion about the facts which are going on and make the people aware of it. It is a very good medium for getting news instantly.

Question 4.
Media is the fourth pillar of democracy. Justify
Answer:
Media ensures transparency in the working of all the above three systems. Thus the fourth pillar of democracy ensures that all people living in far-off areas of the country are aware of what’s happening in the rest of the country.

Question 5.
State any two responsibilities of media.
Answer:

  • Maintain transparency in government.
  • Help people in nourishing their rights.

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

VI. Answer the following in detail

Question 1.
How can we classify media?
Answer:
Media is classified into 5 categories. There are:

  1. Narrowcast media: Cable, Television, Direct Mail, Seminar.
  2. Broadcast media: Films, Television, Radio
  3. Print media: Newspapers, Magazine, Journals, Books, Posters, Reports
  4. Web media: Google Website and Blogs
  5. Social media: Twitter, Facebook, WhatsApp, and Instagram.

Question 2.
In what ways does the media play an important role in a democracy?
Solution:

  • Media is the backbone of democracy.
  • It is a driving force of public opinion.
  • It strengthens the democratic value and educate the voters and ensures the government is transparent and accountable.
  • Media carry every report of the administration of Government.
  • Media acts as a watch day and a bridge between the state and the public.

Question 3.
What are the advantages of media?
Solution:

  • Media exposes the strength and weakness of the government.
  • It creates an awareness of the people.
  • Media Provides a balanced report and fight against the socio-political evils and injustice in society.
  • Media has brought the world closer to us.
  • It brings the news and happenings from across the world to the public in a fair and realistic way.
  • It bringing empowerment to the masses and facilitating development.

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

VII. HOTs

Question 1.
Is Media necessary? Why?
Answer:

  • Yes, media is necessary. Because media promotes awareness among the people.
  • It brings the news and happenings from across the world to the public.
  • It has brought the world closer to us.

Question 2.
What do you know about the term press conference?
Answer:
Press conference is an interview given to media persons by a prominent person in order to make an announcement or answer questions.

Question 3.
In what ways media affects our daily lives?
Answer:
Media affects our daily lives because the media has the power to influence our thoughts.

Question 4.
Media is a boon or bane.
Answer:

  • Social media has very useful for everyone and it offers a global platform to share and express But its constant engagement is affecting individual productivity, relationships, and society as a whole.
  • So, Media is considered as a boon as well as a bane.

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

VIII. Activity

Question 1
locus on particular news. Collect information about that news from various media. Compare and write down the similarity and differences
Answer:
Activity to be done by the students themselves

Question 2.
Prepare an album – ‘the growth of media’ (from the early period to till now).
Answer:
Activity to be done by the students themselves

Question 3.
Prepare a newspaper and circulate it in your class.
Answer:
Activity to be done by the students themselves

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

Samacheer Kalvi 7th Social Science Media and Democracy Additional Questions

I. Choose the correct answer:

Question 1.
______ are examples of personal communication.
(a) E-mail
(b) TN.
(c) Radio
(d) Newspapers
Answer:
(a) E-mall

Question 2.
______ are examples of Mass communication.
(a) Letters
(b) Telephone
(c) Cell Phone
(d) Newspapers
Answer:
(d) Newspapers

Question 3.
Which year the printing press was invented?
(a) 1450
(b) 1440
(c) 1453
(d) 1457
Answer:
(c) 1453

Question 4.
______ are portrayed in many cinemas.
(a) Social problems
(b) Political problems
(c) Economic problems
(d) None of these
Answer:
(a) Social problems

Question 5.
Which one of the following comes under social media?
(a) Newspaper
(b) Twitter
(c) Radio
(d) Seminar
Answer:
(b) Twitter

Question 6.
Which one of the following comes under Narrowcast media?
(a) Cable Television
(b) Films
(c) Books
(d) Posters
Answer:
(a) Cable Television

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

II. Fill in the blanks:

  1. ______ is generally the agency for inter-personal communication.
  2. Media is the plural of the ______ medium.
  3. ______ are used for communicating with the masses.
  4. People depend on the media for various needs including ______ and
  5. The media has a massive responsibility in providing ______ coverage.
  6. Media is the backbone of ______

Answers:

  1. Media
  2. word
  3. Mass communication
  4. entertainment, information
  5. factual
  6. democracy

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

III. Match the following:

  1. Murikatha – (a) Public informer
  2. Print media – (b) Communicate messages
  3. Media – (c) Legislature
  4. Democracy – (d) Cinemas
  5. Social problems – (e) Religious media

Answers:

  1. – e
  2. – a
  3. – b
  4. – c
  5. – d

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

IV. Consider the following statements: Tick the appropriate answer

Question 1.
Assertion: Media is a very powerful entity on the earth.
Reason: It is a mirror which shows various social, political, and economic activities around us.
(a) A is correct and R is the correct explanation of A
(b) A is correct and R is not the correct explanation of A
(c) A is wrong and R is Correct
(d) Botharewrong
Answer:
(a) A is correct and R is the correct explanation of A

Question 2.
Find the odd one
(a) Letters
(b) Telephone
(c) E-mail
(d) Fax
(e) Radio
Answer:
(e) Radio

Question 3.
Consider the following statements and choose the correct answer from the codes given below.
a. An individual interacts through the media to reach other individuals and institutions.
b. Media creates awareness.
c. Media provide a balanced report on any matters
d. Media strengthens democratic value.
i. a,b and c are correct
ii. a,b,c and d are correct
iii. a and d are correct iv. b and d are correct
Answer:
ii. a,b,c and d are correct

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

V. Answer in one or two sentences

Question 1.
What are the types of communication?
Answer:
Communication can be classified into:

  • Personal communication – these are meant for personal use, like letters, telephone, cell phone, e-mail, and fax.
  • Mass communication – these are used for communicating with the masses. Newspapers, Radio, TV, Collectively they are termed as media.

Question 2.
What are the four pillars of democracy?
Answer:
The four pillars of democracy are the Legislature, Executive, Judiciary, and Media.

Question 3.
What is ethics?
Answer:
Ethics is a code of values that govern our lives. So they are very essential of a moral and healthy life.

Question 4.
What are the fundamental objectives of the media?
Answer:
The fundamental objectives of media are to serve the people with news, comments, and information on matters of public interest in a fair, accurate, unbiased, and decent manner and language.

Question 5.
What is the meaning of democracy?
Answer:
Democracy means rule by the people. It combines two Greek words. Demos refers to citizens. Kratos means either power or rule.

Samacheer Kalvi 7th Social Science Civics Solutions Term 2 Chapter 2 Media and Democracy

VI. Answer the following in detail

Question 1.
What is the importance of Media?
Answer:

  1. Media is a very powerful entity on the earth.
  2. it is a mirror which shows various social, political, and economic activities around us.
  3. Media keeps the people awakened and it has become one of the major instruments of social change.
  4. It also advertises the various products produced by private companies.
  5. It creates awareness.
  6. Media provide a balanced report on any matters.
  7. It fights against the sociopolitical evils and injustice in our society while bringing empowerment to the masses and facilitating development.

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Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3

Students can Download Maths Chapter 5 Information Processing Ex 5.3 Questions and Answers, Notes Pdf, Samacheer Kalvi 7th Maths Book Solutions Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3

Miscellaneous Practice Problems

Question 1.
Choose the correct relationship between x and y for the given table.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 1
(i) y = x + 4
(ii) y = x + 5
(iii) y = x + 6
(iv) y = x + 7
Answer:
(iii) y = x + 6

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3

Question 2.
Find the triangular numbers from the Pascal’s Triangle and colour them.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 2
Solution:
Triangular numbers are numbers the objects of which can be arranged in the form of equilateral triangle.
Example : 1, 3, 6, 10, 15,…
From Pascal’s Triangle, the triangular numbers are
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 3

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3

Question 3.
Write the first five numbers in the third slanting row of the Pascal’s Triangle and find their squares. What do you infer?
Solution:
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 4
Numbers in the 3rd slanding row are 1, 3, 6, 10, 15, 21,….
The squares are 12, 32, 62, 102. 152, 212,…. = 1, 9, 36, 100, 225, 441,…
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 5
From the above table we can conclude that the squares of the triangular numbers are the sum of cubes of natural numbers.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3

Challenge Problems

Question 4.
Tabulate and find the relationship between the variables (x and y) for the following patterns.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 6
Solution:
(i) Let the number of steps be x and the number of shapes be y.
Tabulating the values of x and y
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 7
From the table
x = 1 ⇒ y = 1 = 12
x = 2 ⇒ y = 4 = 22
x = 3 ⇒ y = 9 = 32
x = 4 ⇒ y = 16 = 42
Hence the relationship between x and y is y = x2.

(ii) Let the number of steps be x and the number of shapes be y.
Tabulating the values of x and y
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 8
From the table x = 1 ⇒ y = 1 = 1
x = 2 ⇒ y = 2 + 1 = 3
x = 3 ⇒ y = 3 + 2 = 5
x = 4 ⇒ y = 4 + 3 = 7
x = 5 ⇒ y = 5 + 4 = 9
Hence the relationship between x and y is y = 2x-1.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3

Question 5.
Verify whether the following hexogonal shapes form a part of the Pascal’s Triangle.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 9
Solution:
In Pascal’s Triangle product of the 3 alternate numbers given around the hexagon is equal to the product of remaining three numbers.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 10
1 × 13 × 66 = 11 × 1 × 78 = 858
∴ It form a part of Pascal’s Triangle.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 11
5 × 21 × 20 = 10 × 6 × 35 = 2100
∴ It form a part of Pascal’s Triangle

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 12
8 × 45 × 84 = 28 × 9 × 120 = 30240
∴ It form a part of Pascal’s Triangle

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 13
56 × 210 × 126 = 70 × 84 × 252 = 1481760
∴ It form a part of Pascal’s Triangle

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Ex 5.3 Read More »

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Additional Questions

Students can Download Maths Chapter 5 Information Processing Additional Questions and Answers, Notes Pdf, Samacheer Kalvi 7th Maths Book Solutions Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Additional Questions

Additional Questions and Answers

Exercise 5.1

Question 1.
Find the relationship between x and y if
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Additional Questions 1
Solution:
The relationship between x and y is y = -5x

Question 2.
Find the relationship between x and y if
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Additional Questions 2
Solution:
The relationship between x andy is y = 3x + 2

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Additional Questions

Exercise 5.2

Question 1.
Find the sum of the elements of Pascal’s triangle and find the relationship between the numbers obtained.
Solution:
Pascal’s triangle with sum of elements is given by
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Additional Questions 3
The numbers formed are 1, 2, 4, 8, 16, 32, 64, …………..
They can be written as 20, 21, 22, 23, 24, 25, 26, …………..
So they are the powers of base 2
The relationship is given by 2x-1 if x represents the row.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Additional Questions

Exercise 5.3

Question 1.
If the following numbers are taken from Pascal’s triangle find the missing numbers.

  1. 9, 1, _____ = 45, 1, 11
  2. 1, 6, _____ = 1, 4, 15
  3. 21, 8, 1 = _____, 6, 28

Solutions:

  1. 55
  2. 10
  3. 1

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Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions

Students can Download Maths Chapter 5 Information Processing Intext Questions and Answers, Notes Pdf, Samacheer Kalvi 7th Maths Book Solutions Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions

Activity (Text book Page No. 91)

Question 1.
Observe the pattern given below. Continue the pattern for three more steps.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 1
Let, ‘x’ be the number of steps and ‘y’ be the number of match sticks. Tabulate the values of ‘x’ and ‘y’ and verify the relationship y = 7x + 5.
Solution:
Three more patterns are
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 2
From the table y = 7x + 5 is verified.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions

Try These (Text book Page No. 92)

Question 1.
In the given figure, let Y denote the number of steps and y denote its area. Find the relationship between x and y by tabulation.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 3
Solution:
Let x denote the number of steps and y denote the area.
In the first shape let x = 1 and the area be 1 cm2
when x = 2 : Area = 22 = 4 cm2
whenx = 3 : Area = 32 = 9 cm2 and so on.
Tabulating the values of x and y
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 4
From the table:
x = 1 ⇒ y = 12
x = 2 ⇒ y = 22
x = 4 ⇒ y = 42
x = 5 ⇒ y = 52
Hence the relationship between x and y is y = x2

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions

Question 2.
In the figure, let x denotes the number of steps and y denotes the number of matchsticks used. Find the relationship between Y and y by tabulation.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 5
Solution:
Let x denote the number of steps and y denote the number of matchsticks used.
In step 1, x = 1 ⇒ y = number of mathsticks used is 1
In step 2, x = 2 ⇒ y = number of mathsticks used is 4
In step 3, x = 3 ⇒ y = number of mathsticks used is 7 and so on.
The values of v andy are tabulated as
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 6
x = 1 ⇒ y = 1 = 3(1) – 2
x = 2 ⇒ y = 4 = 3(2) – 2
x = 3 ⇒ y = 7 = 3(3) – 2
x = 4 ⇒ y = 10 = 3(4) – 2
From the table y = 3x – 2

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions

Question 3.
Observe the table given below.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 7
Find the relationship between x and y. What will be the value of y, when x = 8.
Solution:
Soil When x = – 2 y = 2 (-2) = -4
When x = -1 y = 2 (-1) = -2
When x = 0 y = 2 (0) = 0
When x =1 y = 2(1) = 2
When x = 2 y = 2 (2) = 4
When x = 8 y = 2 (8) = 16.
Also y = 2x is the relation between x and y.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions

Activity (Text book Page No. 93 & 94)

Question 1.
Complete the following Pascal’s Triangle by observing the number pattern.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 8
Solution:
Pascal’s triangle is given by
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 9

Question 2.
Observe the above completed and r find the sequence that you see in it and complete them.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 10
(i) 1,2, 3, 4, 5, 6, 7.
(ii) 1, 3, _____, _____, _____, _____.
(iii) 1, _____, _____, _____, _____,
(iv) _____, _____, _____, _____.
Solution:
(i) 1,2, 3, 4, 5, 6, 7.
(ii) 1,3,6,10,15,21.
(iii) 1,4,10,20,35.
(iv) 1,5,15,35.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions

Question 3.
Observe the sequence of numbers obtained in the 3rd and 4th slanting rows of Pascal’s Triangle and find the difference between the consecutive numbers and complete the table given below.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 11
Solution:
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 12

Try These (Text book Page No. 96)

Question 1.
Observe the pattern of numbers given in the slanting rows earlier and complete the Pascal’s Triangle.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 13
Solution:
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 14

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions

Question 2.
Complete the given Pascal’s Triangle. Find the common property of the numbers filled by you. Can you relate this pattern with the pattern discussed in situation 2. Discuss.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 15
Solution:
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions 16
Common Properties:
The numbers filled by me are even numbers. Also they make triangular shape.
Yes, this pattern and the pattern given in situation 2 have the same properties.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 5 Information Processing Intext Questions Read More »

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

You can Download Samacheer Kalvi 7th Social Science Book Solutions Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

Samacheer Kalvi 7th Social Science Rise of Marathas and Peshwas Textual Evaluation

I. Choose the correct answer?

Question 1.
Who was the teacher and guardian of Shivaji?
(a) Dadaji Kondadev
(b) Kavi Kalash
(c) Jijabai
(d) Ramdasl
Answer:
(a) Dadaji Kondadev

Question 2.
How was the Prime Minister of Maratha kings known?
(a) Deshmukh
(b) Peshwa
(c) Panditrao
(d) Patil
Answer:
(b) Peshwa

Question 3.
Name the family priest of Shambhuji who influenced him in his day-to-day administration.
(a) Shahu
(b) Anaji Datta
(c) Dadaji Kondadev
(d) Kavi Kalash
Answer:
(d) Kavi Kalash

Question 4.
What was the backbone of Shivaji’s army in the beginning?
(a) Artillery
(b) Cavalry
(c) Infantry
(d) Elephantry
Answer:
(c) Infantry

Question 5.
Who proclaimed wars and freed Malwa and Gujarat from Mughal domination?
(a) Balaji Vishwanath
(b) Bajirao
(c) Balaji Bajirao
(d) Shahu
Answer:
(b) Bajirao

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

II. Fill in the Blanks

  1. The spread of the _______ movement in Maharashtra helped the Maratha people develop consciousness and oneness.
  2. _______ was the key official of revenue administration of Peshwa.
  3. The imperial moment of the Marathas sadly ended at _______ in 1761.
  4. _______ was the foreign minister in the Ashtapradhan.
  5. Shambhuji succeeded Shivaji after a succession tussle with _______

Answers:

  1. Bhakti
  2. Kamavisdar
  3. Panipat
  4. Sumant / Dubeer
  5. Anaji Dattcu

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

III. Match the following

Question 1.

  1. Shaji Bhonsle – Mother of Shivaji
  2. Shambhuji – General of Bijapur
  3. Shahu – Shivaji’s father
  4. Jijabai – Son of Shivaji
  5. Afzal khan – Shivaji’s grandson

Answer:

  1. Shaji Bhonsle – Shivaji’s father
  2. Shambhuji – Son of Shivaji
  3. Shahu – Shivaji’s grandson
  4. Jijabai – Mother of Shivaji
  5. Afzal khan – General of Bijapur

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

IV. True or False

  1. The rocky and mountainous terrain gave protection to the Marathas from invaders.
  2. Hymns composed in Sanskrit by the Bhakti saints were sung by people of all castes and classes.
  3. Shivaji captured Puranthar from the Mughals.
  4. Deshmukhs held sway over rural regions and their control was over between twenty and hundred villages.
  5. Abdali invaded ten times before finally marching on Delhi.

Answers:

  1. True
  2. False
  3. True
  4. True
  5. False

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

V. Consider the following statements. Tick (✓) the appropriate answer

Question 1.
Assertion (A): Soldiers were to live in forts and towns far away from home
Reason (R): Maratha soldiers were not permitted to retire from battlefields each year for the purpose of cultivating their land.
(a) R is the correct explanation of A
(b) R is not the correct explanation of A
(c) A is Wrong and R is correct
(d) A and R are wrong
Answer:
(b) R is not the correct explanation of A

Question 2.
Statement I: Judging from the ledgers of correspondence and account books, Peshwas were keen on accurate record-keeping.
Statement II: Artillery decided the battle at Panipat in 1761.
(a) I is correct
(b) II is correct
(c) I and II are correct
(d) I and II are false
Answer:
(c) I and II are correct

Question 3.
Find the odd one out
Shahji, Shivaji, Shambhuji, Shahu, Rahuji, Bhonsle.
Answer:
Rahuji

Question 4.
Find out the wrong pair
1. Gaikwad – Baroda
2. Peshwa – Nagpur
3. Holkar – Indore
4. Shiride – Gwalior
Answer:
2. Peshwa – Nagpur

Question 5.
Arrange the events in chronological order
(i) Shivaji became totally independent after the death of his guardian Kondadev.
(ii) Emperor Shahu died when Balaji Bajirao was Peshwa.
(iii) Shivaji resumed his military raids after his father’s death and conquered Javali.
(iv) Balaji Vishwanath became Peshwa.
Answer:
(i) Shivaji became totally independent after the death of his guardian Kondadev.
(iii) Shivaji resumed his military raids after his father’s death and conquered Javali.
(iv) Balaji Vishwanath became Peshwa.
(ii) Emperor Shahu died when Balaji Bajirao was Peshwa.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

VI. Answer in one or two sentences

Question 1.
The impact of the Bhakti movement on Marathas.
Answer:
The spread of the Bhakti movement in Maharashtra helped the Maratha people develop consciousness of their identity and oneness. It promoted a feeling of unity, especially in terms of social equality, among the Marathas.

Question 2.
Chauth and Sardeshmukhi
Answer:
Shivaji claimed suzerainty, but he did not administer them himself. He protected the people from loot and plunder for which they were required to pay Chauth (one- fourth of the revenue as protection money) and Sardeshmukhi (an extra one-tenth, as the chieftain’s due).

Question 3.
Role of Kamavisdar in Maratha revenue administration.
Answer:
The revenue administration of Peshwas was headed by a key official called the Kamavisdar. He was appointed by the Peshwa. He was empowered to maintain a small body of soldiers to police the administrative area, from where tribute or tax had to be collected.

Question 4.
Execution of Shambhuji by Mughal Army.
Answer:
Marathas under Shambhuji were in no position to resist the Mughals. Aurangzeb himself arrived in the Deccan in 1681. Aurangzeb’s main goal was the annexation of Bijapur and Golconda. These two sultanates fell to Aurangzeb by 1687. In little over a year, Shambhuji was captured by the Mughals and, after torture, put to death.

Question 5.
Battle of Panipat fought in 1761.
Answer:
The imperial moment of the Marathas sadly ended at Panipat near Delhi in 1761. The king of the Afghans, Ahmad Shah Abdali, invaded eight times before finally marching onto Delhi. The Marathas were now divided among several commanders, who approached the battle with different tactics. Artillery decided the battle in January 1761. The mobile artillery of the Afghans proved lethal against both Maratha cavalry and infantry.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

VII. Answer the following.

Question 1.
Examine the essential features of the Maratha administration under Shivaji.
Answer:
Shivaji’s political system consisted of three circles. At the center was the swaraj. Shivaji was caring and would not allow the people to be harassed in any way.

He protected the people from loot and plunder for which they were required to pay Chauth (one-fourth of the revenue as protection money) and Sardeshmukhi (an extra one-tenth, as the chieftain’s due). In the third circle, Shivaji’s only objective was plunder.

Army
Shivaji gave utmost attention to his army and training of its personnel. In the beginning, the backbone of his army was the infantry. Shivaji took great care in the maintenance and security of his forts.

Ashtapradhan
Shivaji designated eight ministers as the Ashtapradhan, each holding an important portfolio. Peshwa was the equivalent of a modem prime minister in the Maratha Empire. Shivaji was influenced by the Mughal revenue system. The assessments were made on the actual yield, with three-fifths left to the cultivator and two-fifths taken by the government.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

VIII. HOTs

Question 1.
Compare the revenue administration of the Peshwas with that of Shivaji.
Answer:
Revenue administration of Shivaji:

  1. Shivaji abolished the zamindari system.
  2. Loans were provided to the farmers in times of famine.
  3. The state also collected custom duties and professional taxes.
  4. The two important taxes collected during his time were Chauth and Sardeshmuki.

Revenue administration of Peshwas:

  1. The revenue administration of pesewas was headed by a key official called the kamavisdar.
  2. He was empowered to maintain a small body of soldiers to police the administrative area, from where tribute or tax had to be collected.
  3. A prospective tax or revenue collector who won the contract was expected to have a reputation for wealth and probity.
  4. He was required to pay a portion of the whole of the anticipated revenue – one third to one half-either out of his own wealth or from the money borrowed from bankers.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

IX. Map

Question 1.
Maratha Empire with prominent cities and forts.
Answer:
Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas 1

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas
X. Student Activity

Question 1.
Match the responsibilities of Ashtapradhan
Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas 2
Answer:
Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas 3

Question 2.
Group Activity
Collect information about the Thanjavur Marathas with special reference to their contribution to education, art, and architecture.
Answer:

  •  Venkoji, a half-brother of great Maratha king Shivaji established the Maratha Kingdom at Tanjore in April 1674 A.D.
  •  Shahuji I, Serfoji I, Serfoji II were important rulers of Tanjore Maratha place, Saraswathi Mahal Library were important buildings built by them.
  • They favoured, Sanskrit, and Telugu literature.
  • Tanjore paintings are added beauty to their palaces.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

Samacheer Kalvi 7th Social Science Rise of Marathas and Peshwas Additional Questions

I. Choose the correct answer:

Question 1.
_______ language and literature also served to develop unity among the people.
(a) Tamil
(b) Marathi
(c) English
(d) Telugu
Answer:
(b) Marathi

Question 2.
Shivaji became totally independent after the death of his guardian.
(a) Kondadev
(b) Tukaram
(c) Ramdas
(d) Shambhuji
Answer:
(a) Kondadev

Question 3.
_______ captured puranthar from the Mughals.
(a) Shivaji
(b) Shambuji
(c) Shahji Bhonsle
(d) Shahu
Answer:
(a) Shivaji

Question 4.
Shivaji’s political system consisted of ________ circles.
(a) two
(b) three
(c) four
(d) five
Answer:
(b) three

Question 5.
Aurangzeb himself arrived in the Deccan in ________.
(a) 1659
(b) 1663
(c) 1664
(d) 1681
Answer:
(d) 1681

Question 6.
________ now commanded an army of paid soldiers.
(a) Shivaji
(b) Shahu
(c) Balaji Bajirao
(d) Kondadev
Answer:
(c) Balaji Bajirao

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

II. Fill in the blanks:

  1. ________ was a gallant fighter, army general, and guerilla leader.
  2. ________ promoted a feeling of unity, especially in terms of social equality among the Marathas.
  3. ________ and ________ had considerable influence on the life of Shivaji.
  4. In 1659 Shivaji killed ________, a notable general of Bijapur.
  5. ________ was determined to stop the Maratha interference in his expeditions against the Deccan kingdoms.
  6. Shivaji designated eight ministers as the ________ each holding an important portfolio.

Answers:

  1. Shivaji
  2. Bhakti Movement
  3. Tukaram, Ramdas
  4. Afzal khan
  5. Aurangzeb
  6. Ashtapradhan

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

III. Match the following

  1. Powerful headman – (a) Mughal revenue system
  2. Village accountant – (b) Chief Justice
  3. Shivaji – (c) Foreign Minister
  4. Nyayadhish – (d) Kulkarni
  5. Sumant – (e) Patil

Answers:

  1. – e
  2. – d
  3. – a
  4. – b
  5. – c

IV. True or False

  1. The Prime Minister of Maratha rulers called the Peshwas.
  2. Hymns composed in the Marathi language by Bhakti saints were sung by people of all castes and classes.
  3. In 1656, the Mughal army was helpless when Shivaji again plundered Suraj.
  4. Shivaji was influenced by the Mughal revenue system.
  5. The imperial moment of the Marathas sadly ended at Panipat near Calcutta in 1761.

Answers:

  1. True
  2. True
  3. False
  4. True
  5. False

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

V. Consider the following statements: Tick the appropriate answer

Question 1.
Assertion (A) : Shambuji succeeded Shivaji after a succession tussle with Anaji Datto.
Reason (R) : Balaji Vishwanath began his career as a small revenue official and became Peshwa in 1713.
(a) R is the correct explanation of A
(b) R is not the correct explanation of A
(c) A is wrong and R is correct
(d) A and R are correct
Answer:
(d) A and R are correct

Question 2.
Statement I : The rocky and mountainous terrain gave protection to the Marathas from invaders.
Statement II : The strength of Shivaji’s army was Mavali foot soldiers.
(a) I is correct
(b) II is correct
(c) I and II are correct
(d) I and II are false
Answer:
(c) I and II are correct

Question 3.
Find out the wrong pair.
1. Panditra – High Priest
2. Nyayadhish – Chief Justice
3. Sacheev – Secretary
4. Peshwa – Finance Minister
Answer:
Peshwa – Finance Minister

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

VI. Answer in one or two sentences

Question 1.
Write the geographical features of the Marathas.
Answer:
The physical features of the Maratha country developed certain peculiar qualities among the Marathas, which distinguished them from the rest of the people of India. The rocky and mountainous terrain gave protection to the Marathas from invaders. It proved to be advantageous in guerrilla warfare for Marathas.

Question 2.
Write the literature and language of the Marathas.
Answer:
Marathi language and literature also served to develop unity among the people. Hymns composed in the Marathi language by Bhakti saints were sung by people of all castes and classes.

Question 3.
Write a note on Peshwas.
Answer:
Balaji Vishwanath (1713-1720) began his career as a small revenue official and became Peshwa in 1713. Much against the advice from his close circles, Shahu appointed 20-year-old Viswanath’s eldest son Bajirao to occupy the office of Peshwa.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

VI. Answer the following in detail

Question 1.
Describe Shivaji’s confrontation with the Sultan of Bijapur.
Answer:

  1. Shivaji became totally independent after the death of his guardian Kondadev (1649).
  2. He also got his father’s jagir transferred to him, which was earlier looked after by Kondadev.
  3. The strength of his army was Mavali foot soldiers.
  4. With their help, Shivaji conquered many of the hill forts near Poona.
  5. He captured Puranthar from the Mughals.
  6. Shivaji’s military raids angered the Sultan of Bijapur.
  7. He held Shivaji’s father captive and released him only after Shivaji promised to suspend his military raids.
  8. Shivaji kept his word and remained at peace with Bijapur from then on till his father Shahji’s death.
  9. During this period he toned up his administration.

Question 2.
Briefly explain the consolidation of Maratha Power.
Answer:

  1. Shivaji resumed his raids after his father’s death and conquered Javali (1656) from the Maratha chief Chandrarao More.
  2. He also reduced all the lesser Maratha chiefs around Pune to subordination.
  3. The soldiers of Bijapur from the hill fortresses acquired by the Sultan of Bijapur were driven out and replaced with his own commanders.
  4. These moves and the defeat of the Bijapur army sent to punish Shivaji alarmed the Mughal officials.
  5. When the Mughals made a punitive expedition, Shivaj boldly confronted them.
  6. In 1659 he killed Afzal Khan, a notable general of Bijapur.
  7. In 1663 he wounded and chased away the Mughal general and Aurangzeb’s uncle Shaista Khan.
  8. To cap these bold acts, he audaciously directed his soldiers to plunder Surat (1664), the major Mughal port on the Arabian Sea.

Samacheer Kalvi 7th Social Science History Solutions Term 2 Chapter 3 Rise of Marathas and Peshwas

Question 3.
What are the responsibilities of the Asthapradhan?
Answer:
Responsibilities of the Ashtapradhan:

  • Pantpradhan / Peshwa – Prime Minister
  • Amatya / Mazumdar – Finance Minister
  • Shurunavis/Sacheev – Secretary
  • Waqia-Navis – Interior Minister
  • Sar-i-Naubat / Senapati – Commander-in-Chief
  • Sumant / Dubeer – Foreign Minister
  • Nyayadhish – Chief Justice
  • Panditrao – High Priest

Question 4.
Write about Balaji Bajirao.
Answer:

  1. When Balaji Bajirao was the Peshwa, Emperor Shahu died (1749).
  2. He summoned all the contending factions and forced them to accept the conditions he laid down.
  3. He decided that the capital of the kingdom would henceforward be Pune, not Satara.
  4. All power and authority were now concentrated in the Peshwas’s office.
  5. The Maratha peasant warrior band was reconfigured and its run came to an end.
  6. Maratha soldiers were not permitted now to retire from battlefields each year for the purpose of cultivating their land.
  7. Soldiers were required to live in forts and towns far away from their homes.
  8. They were trained as infantrymen as well as horsemen.
  9. The large guns were nominally under the command of Maratha officers.
  10. During the period of the Peshwa Balaji Bajirao, the northern frontiers of the Maratha state were rapidly touching Rajasthan, Delhi, and Punjab.
  11. The Marathas launched raids from Nagpur against Bihar, Bengal, and Odisha. Notwithstanding the conflict between the Marathas and the Nizam over Karnataka, Tamil, Kannada, and Telugu regions were effectively brought under the control of the Marathas.

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Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Students can Download Maths Chapter 4 Geometry Intext Questions and Answers, Notes Pdf, Samacheer Kalvi 7th Maths Book Solutions Guide Pdf helps you to revise the complete Tamilnadu State Board New Syllabus and score more marks in your examinations.

Tamilnadu Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Exercise 4.1

Try These (Text book Page No. 66)

Answer the following questions.

Question 1.
Triangle is formed by joining three ______ points.
Answer::
Non collinear

Question 2.
A triangle has ______ vertices and ______ sides.
Answer:
three, three

Question 3.
A point where two sides of a triangle meet is known as ______ of a triangle.
Answer:
vertese

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Question 4.
Each angle of an equilateral triangle is of measure.
Answer:
same

Question 5.
A triangle has angle measurements of 29°, 65° and 86°. Then it is ______ triangle.
(i) an acute angled
(ii) a right angled
(iii) an obtuse angled
(iv) a scalene
Answer:
(i) an acute angled

Question 6.
A triangle has angle measurements of 30°, 30° and 120°. Then it is ______ triangle.
(i) an acute angled
(ii) scalene
(iii) obtuse angled
(iv) right angled
Answer:
obtuse angled

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Question 7.
Which of the following can be the sides of a triangle?
(i) 5.9.14
(ii) 7,7,15
(iii) 1,2,4
(iv) 3, 6, 8
Answer:
(iv) 3, 6, 8
Solution:
(i) Here 5 + 9 = 14 = the measure of the third side.
In a triangle the sum of the measures of any two sides must be greater than the third side.
∴ 5, 9, 14 cannot be the sides of a triangle.

(ii) 7.7.15
Here sum of two sides 7 + 7 = 14 < the measures of the thrid side.
So 1,1, 15 cannot be the sides of a triangles.

(iii) 1,2,4
Here sum of two sides 1 + 2 = 3 < the measure of the third side.
∴ 1, 2, 4 cannot be the sides of a triangle.

(iv) 3, 6, 8
Sum of two sides 3 + 6 = 9 > the third side.
∴ 3, 6, 8 can be the sides of a triangle.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Question 8.
Ezhil wants to fence his triangular garden. If two of the sides measure 8 feet and 14 feet then the length of the third side is ______
(i) 11 ft
(ii) 6 ft
(iii) 5 ft
(iv) 22 ft
Answer:
(i) 11 ft

Question 9.
Can we have more than one right angle in a triangle?
Solution:
No, we cannot have more than one right angle in a triangle.
Because the sum of three angles of a triangle is 180°.
But if two angles are right angles then their sum itself become 180°.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Question 10.
How many obtuse angles are possible in a triangle?
Solution:
Only one.

Question 11.
In a right triangle, what will be the sum of other two angles?
Solution:
Sum of three angles of a triangle = 180°
If one angle is right angle (i.e. 90°) .
Sum of other two sides = 180° – 90° = 90°

Question 12.
Is it possible to form an isosceles right angled triangle? Explain.
Solution:
Yes, it is possible.
If one angle is right angle, then the other two angles will be 45° and 45°.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Exercise 4.2

Try These (Text book Page No. 76)

Question 1.
Measure and group the pair of congruent line segments.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions 1
Solution:
\(\overline{A B}\) = 3 cm
\(\overline{C D}\) = 4.8 cm
\(\overline{I J}\) = 4.8 cm
\(\overline{P Q}\) = 3 cm
\(\overline{R S}\) = 1.7 cm
\(\overline{X Y}\) = 1.7 cm
From the above measurement S, we can conclude that
(i) \(\overline{A B}\) ≅ \(\overline{P Q}\)
(ii) \(\overline{C D}\) ≅ \(\overline{I J}\)
(iii) \(\overline{R S}\) ≅ \(\overline{X Y}\)

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Try These (Text book Page No. 77)

Question 1.
Find the pairs of congruent angles either by superposition method or by measuring them.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions 2
Solution:
From the given figures
∠ABC = 50°
∠EFG = 120°
∠HIJ = 120°
∠KLH = 90°
∠PON = 50°
∠RST = 90°
From the above measures, we can conclude that
(i) ∠ABC = ∠PON
(ii) ∠EFG = ∠HIJ
(iii) ∠KLH ≅ ∠RST

Try These (Text book Page No. 83)

Question 1.
If ∆ABC ≅ ∆XYZ then list the corresponding sides and corresponding angles.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions 3
Solution:
If ∆ABC ≅ ∆XYZ
\(\overline{A B}\) ≅ \(\overline{X Y}\) – \(\overline{B C}\) ≅ \(\overline{Y Z}\)
\(\overline{A C}\) ≅ \(\overline{X Z}\)
And also
∠A ≅ ∠X – ∠B ≅ ∠Y
∠C ≅ ∠Z

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions

Question 2.
Given triangles are congruent. Identify the corresponding parts and write the congruent statement.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions 4
Solution:
Given the set of triangles are congruent. Also we observe from the triangles that the corresponding sides.
\(\overline{A B}\) = \(\overline{A C}\)
\(\overline{B C}\) = \(\overline{Y Z}\)
\(\overline{A C}\) = \(\overline{X Z}\)
Here three sides of ∆ABC are equal to the corresponding sides of ∆XYZ.
This criterion of congruency is side – side – side.

Question 3.
Mention the conditions needed to conclude the congruency of the triangles with reference to the above said criterions. Give reasons for your answer.
Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions 5
Solution:
(i) In ∆ABC and ∆XYZ
if \(\overline{A B}\) = \(\overline{X Y}\)
\(\overline{B C}\) = \(\overline{Y Z}\)
\(\overline{A C}\) = \(\overline{X Z}\)
then ∆ABC ≅ ∆XYZ. By the Side – Side -Side Congruency Criterion.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions 6
then ∆AB ≅ ∆XYZ.
By Side – Angle – Side Criterion.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions 7
then ∆ABC ≅ ∆XYZ.
By Angle – Side – Angle Congruency Critirion.

Samacheer Kalvi 7th Maths Solutions Term 2 Chapter 4 Geometry Intext Questions 8
then by RHS criterion.
∆ABC ≅ ∆XYZ

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