NCERT Solution
Class 7
Social Science - Our Environment (Geography)
Air
i which of the following gases protects us from...

Question:
(i) Which of the following gases protects us from harmful sun vays?
(a) Carbon dioxide (b) Nitrogen (c) Ozone

(ii) The most important layer of the atmosphere is
(a) Troposphere (b) Thermosphere (c) Mesosphere

(iii) Which of the following layers of the atmosphere is free from clouds?
(a) Troposphere (b) Stratosphere (c) Mesosphere

(iv) As we go up the layers of the atmosphere, the pressure
(a) Increases (b) Decreases (c) Remains the same

(v) When precipitation comes down to the earth in the liquid form, it is called
(a) Cloud (b) Rain (c) Snow

Answer:

(i) (c) ozone
(ii) (a) troposphere
(iii) (b) stratosphere
(iv) (b) decrease
(v) (b) rain

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Popular questions of class 7 Social Science - Our Environment (Geography)

Imagine an ideal environment where you would love to live. Draw the picture of your ideal environment.

(i) There is scanty vegetation in the deserts.
(ii) People of the Sahara desert wear heavy robes.

Observe the photographs given below. These are various features made by a river. Identify them and also tell whether they are erosional or depositional or landforms formed by both.

(i) Wet clothes take longer time to dry on a humid day?
(ii) Amount of insolation decreases from equator towards poles?

(i) Ocean water is salty.
(ii) The quality of water is deterioting.

(i) Today’s world is shrinking.

(i) Name the continent in which the Amazon Basin is located.
(ii) What are the crops grown by the people of the Amazon Basin.
(iii) Name the birds that you are likely to find in the rainforests of the Amazon.
(iv) What are the major cities located on the River Ganga.
(v) Where is the one-horned rhinoceros found?

(i) Which is not a natural ecosystem?
(a) Desert (b) Aquarium (c) Forest

(ii) Which is not a component of human environment?
(a) Land (b) Religion (c) Community

(iii) Which is a human made environment?
(a) Mountain (b) Sea (c) Road

(iv) Which is a threat to environment?
(a) Growing plant(b) Growing population (c) Growing crops

(i) Sahara is located in which part of Africa
(a) eastern (b) northern (c) western

(ii) Sahara is what type of desert
(a) cold (b) hot (c) mild

(iii) The Ladakh desert is mainly inhabited by
(a) Christians and Muslims
(b) Buddhists and Muslims
(c) Christians and Buddhists

(iv) Deserts are characterised by
(a) scanty vegetation
(b) heavy precipitation
(c) low evaporation

(v) Hemis in the Ladakh is a famous
(a) temple (b) church (c) monastery

(vi) Egypt is famous for growing
(a) wheat (b) maize (c) cotton

(i) Glacier (a) Sea shore
(ii) Meanders (b) Mushroom rock
(iii) Beach (c) River of ice
(iv) Sand dunes (d) Rivers
(v) Waterfall (e) Vibrations of earth
(vi) Earthquake (f) Sea cliff
(g) Hard bed rock
(h) Deserts

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Recently Viewed Questions of Class 7 Social Science - Our Environment (Geography)

(i) Wet clothes take longer time to dry on a humid day?
(ii) Amount of insolation decreases from equator towards poles?

(i) Man modifies his environment

(ii) Plants and animals depend on each other

(i) There is scanty vegetation in the deserts.
(ii) People of the Sahara desert wear heavy robes.

(i) Toucans are a type of
(a) birds (b) animals (c) crops

(ii) Manioc is the staple food of
(a) Ganga Basin (b) Africa (c) Amazon

(iii) Kolkata is located on the river
(a) Orange (b) Hooghly (c) Bhagirathi

(iv) Deodars and firs are a type of
(a) Coniferous trees (b) Deciduous trees (c) shrubs

(v) Bengal tiger is found in
(a) mountains (b) delta area (c) Amazon

(i) Oasis (a) Libya
(ii) Bedouins (b) monastery
(iii) Oil (c) glacier
(iv) Gangri (d) depressions with water
(v) Lamayuru (e) cold desert
(f) Sahara

(i) Ocean water is salty.
(ii) The quality of water is deterioting.

(i) The process by which water continually changes its form and circulates between oceans, atmosphere and land
(a) Water cycle (b) Tides (c) Ocean currents

(ii) Generally the warm ocean currents originate near
(a) Poles (b) Equator (c) None of these

(iii) The rythmic rise and fall of ocean water twice in a day is called
(a) Tide (b) Ocean current (c) Wave

(i) The rainforests are depleting.
(ii) Paddy is grown in the Ganga-Brahmaputra plains.

Observe the photographs given below. These are various features made by a river. Identify them and also tell whether they are erosional or depositional or landforms formed by both.

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