NCERT Solutions For Class 7th Geography

NCERT Class 7th Geography Solutions


NCERT Class 7th Geography Solutions




Chapter.1: Environment






1. Answer the following questions.

1. What is an ecosystem?

Ans-The relationship between living organisms with each other and even with their surroundings in known as Ecosystem

2. What do you mean by natural environment?

Ans-Where land, water, air, plants and animals comprise is known as the natural environment.

3. Which are the major components of the environment?

Ans-1.Natural.   2. Human-made

3.Human

4. Give four examples of human-made environment?

Ans- 1.Schools.

2.Parks.

3.Roads.

4.Monuments.

5. What is lithosphere?

Ans-It is the solid crust or the hard top layer of the earth.

6. Which are the two major components of biotic environment?

Ans- Plants and animals.

7. What is the biosphere?

Ans-Plants & animal kingdom together makes biosphere.

OR

It is a narrow zone of the earth where land, water, and air interact with each other to support life.

2. Tick the correct answer.

1. Which is not a natural ecosystem?

A.Deserts.    B.Aquarium.  C.Forest

2. Which is not a component of the human environment?

A.Land.            B.Religion.  C.Community

3. Which is a human-made environment?

A.Mountain.       B.Sea. C.Road

4. Which is a threat to the environment?

A.Growing plant

B.Growing population

C.Growing crops

3.Match the following:

1.Biosphere. The →   narrow zone where land, water & air interact

2.Atmosphere →   blanket of air which surrounds the earth

3.Hydrosphere. →.   domain of water

4.Environment →   our surroundings

Chapter.2: Inside Our Earth






1. Answer the following questions.

1. What are the three layers of the earth?

Ans-1.Crust

2.Mantle

3.Core

2. What is a rock?

Ans-Any natural mass of mineral matter that makes up the earth's crust is called a rock.

3. Name three types of rocks?

Ans- 1.Igneous rock.

2.Sedimentary rock.

3.Metamorphic rock.

4. How are extrusive and intrusive rocks formed?

Ans-1.Magma that comes out from the interior of the earth’s surface rapidly cools down and becomes solid. Rocks formed in such a way on the crust is called extrusive igneous rocks. Example: Basalt.

2..When molten magma cools down deep inside the earth’s crust then solid rocks are formed called intrusive igneous rocks. Example: Granite.

5. What do you mean by a rock cycle?

Ans- The process of transformation of the rock from one to another is known as the rock cycle.

6. What are the uses of rocks?

Ans- Rocks are used for making roads, houses, buildings etc.

  1. What are metamorphic rocks?

Ans-When the igneous and sedimentary rocks are subjected to heat and pressure they change into metamorphic rocks.

2. Tick the correct answer.

1. The rock which is made up of molten magma is

A.Igneous.       B.Sedimentary.

C.Metamorphic

2. The innermost layer of the earth is

A.Crust.       B.Mental. C.Core

3. Gold, petroleum, and coal are examples of

A.Rocks.   B.Minerals.  C.Fossils

4. Rocks which contain fossils are

A.Sedimentary rocks

B.Metamorphic rocks.

C.Igneous rocks

5. The thinnest layer of the earth is

A.Crust.   B.Mantle.    C.Core

3. Match the following.

1.Core →  innermost layer

2.Minerals. →. has a definite chemical composition

3.Rocks.  → used for roads and buildings

4.Clay.    → change into slate

5.Sial.    → made of silicon or alumina.

Chapter.3: Our Changing Earth






1. Answer the following questions.

1. Why do the plates move?

Ans-The plates move because the molten magma inside the earth moves in a circular motion.

  1. What are the exogenic and endogenic forces?

Ans-1.Endogenic forces: The forces which act in the interior of the earth.

2.Exogenic forces: The forces that work on the surface of the earth.

3. What is erosion?

Ans-It is the wearing away of a landscape by different agents like water, wind & ice.

4. How are floodplains formed?

Ans-1.At times the river overflows its banks. This leads to the flooding of the neighboring areas

2. At it floods it deposits layers of fine soil and other materials called sediments along its banks. This leads to the formation of a flat fertile floodplain.

5. What are sand dunes?

Ans-When the wind blows it lifts and transport sand from one place to another. When it stops blowing the sand falls gets deposited in the low hill- like structure. These are called sand dunes.

6. How are the beaches formed?

Ans-The sea waves deposit sediments along the shores forming beaches.

7. What are OX bow lakes?

Ans-Due to continuous erosion and deposition along the sides of the meander the ends of the meander loop come closer and closer. In due courses of time, the meander loops cut off from the river and form a cutoff lake, also known as an ox-bow lake.

2.Tick the correct answers.

1. Which is not an erosional feature of sea waves?

A.Cliff.    B.Beach.       C.Sea cave

2.The. the depositional feature of a glacier is:

A.Floodplain.   B.Beach. C.Moraine

3. Which is caused by the sudden movements of the earth?

A.Volcano.    B.Folding.  C.Floodplain

4. Mushroom rocks are found in:

A.Deserts.        B.River valleys.

C.Glaciers

5. Oxbow lakes are found in:

A.Glaciers.       B.River valleys

C.Deserts.

3. Match the following.

1.Glacier.   → river of ice

2.Meanders.   → hard bedrock

3.Beach.  → seashore

Chapter.4: Air


1. Answer the following questions.

1. What is the atmosphere?

Ans-The blanket if air which surrounds the earth is known as atmosphere.

2. Which two gases make the bulk of the atmosphere?

Ans- Nitrogen and Oxygen.

3. Which gas creates the greenhouse effect in the atmosphere?

Ans- Carbon dioxide

4. What is the weather?

Ans-It is hour-to-hour day to day condition of the atmosphere

5. Name three types of rainfall?

Ans-1.Convectional rainfall.

2.Orographic rainfall.

3.Cyclonic rainfall

6. What is air pressure?

Ans-1.It is defined as the pressure exerted by the weight of air on the earth's surface.

2. Tick the correct answer.

1. Which of the following gases protects us from the harmful sun rays?

A. Carbon dioxide B.Nitrogen

C.Ozone

2. The most important layer of the atmosphere is

A.Troposphere.✓   B.Thermosphere

C.Mesosphere

3. Which of the following layers of the atmosphere is free from clouds?

A.Troposphere.     B.Stratosphere

C.Mesosphere

4.As we go up the layers of the atmosphere, the pressure

A.Increases.  B.Decreases.

C.Remains the same

5. When precipitation comes down to the earth in the liquid form, it is called

A.Cloud.      B.Rain.   C.Snow

3. Match the following.

1.Tradewinds:. permanent wind

2.Loo.      :. Local wind

3.Monsoon.    :. Seasonal wind

4.Wind.     :. Horizontal movement of air

Chapter.5: Water






1. Answer the following questions.

1. What is precipitation?

Ans-The falling of water droplets from clouds on the earth's surface is called precipitation.

2. What is the water cycle?

Ans- The process by which water continually changes its form and circulates between oceans, atmosphere, and land is known as the water cycle.

3. What are the factors affecting the height of the waves?

Ans- An earthquake, a volcanic eruption or underwater landslides.

4. Which factors affect the movement of ocean currents?

Ans-Waves, tides, and currents.

5. What are tides and how they are caused?

Ans-1. The rhythmic rise and fall of ocean water twice in a day are called a tide.

2.Causes of tides: The strong gravitational pull exerted by the sun and the moon on the earth's surface cause tides.

6. What are ocean currents?

Ans-Ocean currents are streams of a water flowing constantly on the ocean surface in definite directions

2. Tick the correct answer.

1.The process by which water continually changes its form and circulates between oceans, atmosphere, and land

A.Water cycle.         B.Tides

C.Ocean Currents

2. Generally, the warm ocean currents originate near

A.Poles.         B.The Equator.     C.None of these

3. The rhythmic rise and fall of ocean water twice in a day is called

A.Tide.        B.Ocean current     C.Wave

3.Match the following

1.The Caspian Sea.    :. Largest lake

2.Tide:. Periodic rise and fall of water

3.Tsunami.      :. Strong seismic waves

4.Ocean currents.    :.  Streams of water moving in definite paths.

NCERT Class 7th Geography Solutions Continue

Chapter.6: Natural Vegetation And Wildlife






1. Answer the following questions.

1. Which are the two factors on which the growth of vegetation mostly depends?

Ans-The growth of vegetation depends on temperature and moisture.

2. Which are the three broad categories of natural vegetation?

Ans-Natural vegetation is generally classified into three categories:

1.Forest: Which grow where temperature and rain are plentiful to support a tree cover.

2.Grasslands: Which grow in the region of moderate rain.

3.Shrubs: Thorny shrubs and scrubs grow in the dry region.

3. Name the two hardwood trees commonly found in a tropical evergreen forest?

Ans- Rosewood & ebony.

4. In which part of the world is tropical deciduous forest found?

Ans- In the large part of India, northern Australia, and Central America.

5. In which climatic conditions are citrus fruits cultivated?

Ans-In Mediterranean vegetation.

6. Mention the uses of the coniferous forest?

Ans- The trees of the coniferous forest are very useful for making pulp which is used for manufacturing paper, newsprint, matchboxes and packaging boxes.

7. In which part of the world are Savannah grasslands found?

Ans-East- Africa

2. Tick the correct answer.

1. Mosses and Lichens are found in:

A.Desertic vegetation

B. Tropical evergreen forest

C.Tundra vegetation

2. Thorny  bushes are found in:

A.Hot and humid tropical climate

B.Hot and dry desertic climate

C.Cold polar climate

3. In the tropical evergreen forest, one of the common animals is :

A.Monkey✓

B.Giraffe

C.Camel

4. One important variety of coniferous forest is :

A.Rosewood

B.Pine.

C.Teak

5. Steppe grasslands like is found in

A.S.Africa.   B.Australia. C.Central Asia

3. Match the following.

1.Walrus: a polar animal

2.Cedar: softwood tree

3.Olives. : A citrus fruit

4.Elephants. : An animal of the tropical deciduous forest

5.Campos. : Tropical grassland of Brazil

6.Downs. : Temperate grassland in Australia

Chapter.7: Human Environment-Settlement, Transport And Communication


1. Answer the following questions.

1. What are the four means of transport?

Ans-1.Roadways.

2.Railways.

3.Waterways.

4.Airways

2.What do you understand by the term settlement?

Ans-These are places where people build their homes to live in.

3. Which are the activities practiced by the rural people?

Ans-Agriculture, fishing, foresting, craftwork and trading etc.

4. Mention any two merits of railways?

Ans-1.Carry heavy loads.

2.People can move long distances quickly and cheaply.

5.What do you understand by communication?

Ans-Communication: It is the process of conveying messages to others.

6. What is the mass media?

Ans-The process through which a large number of people can communicate together is known as mass media.

2. Tick the correct answer.

1. Which is NOT a means of communication?

A.telephone. B.books.   C.table

2. Which type of road is constructed under the ground?

A.fly over          B.expressways.

C.. subways

3. Which mode of transport is most suitable to reach an Island?

A.ship.      B.train.     C.car

4.Which  vehicle does not pollute the environment

A.cycle.       B.bus.     C.aeroplane

3. Match the following.

1.Internet.  -. a means of communication

2.Canal route.    -. inland waterways

3.Urban.    -. areas where people are engaged in manufacturing, trade, and services

4.Compact settlement.  -. closely built areas of houses.

Chapter.8: Human-Environment Interactions The Tropical and the Subtropical Region






1.Answer the following questions

1. Name the continent in which the Amazon Basin is located?

Ans-South-America

2. What are the crops grown by the people of the Amazon Basin?

Ans-They mainly grows tapioca, pineapple, and sweet potatoes.

They also grow staple food manioca also known as cassava.

3. Name the birds that you are likely to find in the rainforests of the Amazon?

Ans-Humming birds, toucans, and birds of paradise.

4. What are the major cities located on the River Ganga?

Ans-Allahabad, Kanpur, Varanasi, Lucknow, and Patna.

5. Where is the one-horned rhinoceros found?

Ans- In Brahmaputra plain.

2. Tick the correct answer.

1. Toucans are a type of

A.birds✓.         B.animals. C.crops

2. Manioc is the staple food of

A.Ganga Basin.      B.Africa. C.Amazon✓

3. Kolkata is located on the river

A.Orange.        B.Hooghly.✓ C.Bhagirathi

4. Deodars and firs are a type of

A.Coniferous trees✓

B.Deciduous trees

C.shrubs.

5. Bengal tiger is found in

A.mountains.       B.delta area.✓

C.Amazon

3. Match the following.

1.Cotton textile - Ganga plain

2.Maloca -. Slanting roof

3.Piranha. -.   Fish

4.Silkworm. -. Sericulture

5.Kaziranga.  -. Assam

Chapter.9: Life In The Temperate Grasslands






1. Answer the following questions.

1. What are the Temperate Grasslands of North America called?

Ans- Prairies.

2.What are the cattle farms in the North American Grasslands known as?

Ans-.  Ranches

3. Name the rivers that drain the Velds.

Ans- Orange and Limpopo rivers

4. When is the rainy season in the Velds?

Ans-From November to February.

5. What is the major occupation of the people of the South American Grasslands?

Ans- Gold and Diamond mining.

2. Tick the correct answer.

1. The River Mississippi drains

A.Canada.     B.Africa.      C.USA

2. Drakensberg Mountains bound the

A.Prairies.          B.Velds.      C.Pampas

3. Merino is a species of

A.fish.      B.elephant.  C.sheep

4. Kimberley is famous for

A.diamonds✓.     B.silver. C.platinum

3. Match the following.

1.Cowboys.   -. Prairies

2.Gold.    -. Johannesburg

3.Kudu.   -. Animal

4.Chinook. -.   Hot wind

5.Coal. -.       Iron and steel

Chapter.10: Life The Deserts






1. Answer the following questions.

1. What are the two types of deserts found in the world?

Ans-1.Hot desert 2.Cold desert.

2. In which continent is the Sahara desert located?

Ans- Africa

3. What are the climatic conditions of the Ladakh desert?

Ans- Cold and dry.

4. What mainly attracts tourists to Ladakh?

Ans- Meadows and Glaciers.

5. What type of clothes the people of Sahara desert wear?

Ans-They wears heavy robes as protection against dust storms and hot winds.

6. Name the trees that grow in Ladakh.

Ans-Apple, willow, apricot and walnut trees grow in Ladakh.

2. Tick the correct answer.

1. Sahara desert is located in which part of Africa

A.eastern.      B.northern✓. C.western

2. Sahara is what type of desert

A.cold.        B.hot. ✓ C.mild

3. The Ladakh desert is mainly inhabited by

A.Christians and Muslims

B.Buddhists and Muslims

C.Christians and Buddhists.

4. Deserts are characterized by

A.scanty vegetation

B.heavy precipitation

C.low evaporation

5. Hemis in the Ladakh is a famous

A.temple.      B.church. C.monastery✓

6. Egypt is famous for growing

A.wheat.    B.maize. C.cotton.

3. Match the following.

1.Oasis    -.   depressions with water

2.Bedouins.   -.    Sahara

3.Oil.    -.   Libya

4.Gangri.   -. Glacier

5.Lamayuru.  -monastery

NCERT Class 7th Geography Solutions (End)


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NCERT Class 7th Geography Solutions

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