Our Environment

Book: Our Environment

Chapter: 8. Human Environment Interactions The Tropical and the Sultropical Reg

Subject: Social Science - Class 7th

Q. No. 4 of Exercise

Listen NCERT Audio Books - Kitabein Ab Bolengi

4

Give reasons

Paddy is grown in the Ganga-Brahmaputra plains.

Paddy is grown in Ganga-Brahmaputra plain because the rivers bring very fertile soil called alluvium, which is one of the best soil for agriculture. This soil gets deposited in the plains that is why plains are usually fertile. Paddy needs a lot of water for growth and getting water beside a river is easy. The Ganga-Brahmaputra plains provide flat, fertile land for thecultivationof crops. The amount of rainfall in this region is also quite high.


4

More Exercise Questions

1

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

What are the crops grown by the people of the Amazon Basin.
1

Name the birds that you are likely to find in the rainforests of the Amazon.
1

What are the major cities located on the River Ganga.
1

Where is the one-horned rhinoceros found?
2

Tick the correct Answer.

Toucans are a type of


(a) birds


(b) animals


(c) crops
2

Tick the correct Answer.

Manioc is the staple food of


(a) Ganga Basin


(b) Africa


(c) Amazon
2

Tick the correct Answer.

Kolkata is located on the river


(a) Orange


(b) Hooghly


(c) Bhagirathi
2

Tick the correct Answer.

Deodars and firs are a type of


(a) Coniferous trees


(b) Deciduous trees


(c) shrubs
2

Tick the correct Answer.

Bengal tiger is found in


(a) mountains


(b) delta area


(c) Amazon
3

Match the following.


(i)Cotton textile



(a)Assam



(ii)Maloca



(b)Terrace farming



(iii)Piranha



(c)Sericulture



(iv)Silk worm



(d)Slanting roof



(v)Kaziranga



(e)Ganga plain



-



(f) Varanasi



-



(g)Fish
4

Give reasons

The rainforests are depleting.
4

Give reasons

Paddy is grown in the Ganga-Brahmaputra plains.
5

Map skills.

On an outline map of Indian Sub-continent, draw the rivers Ganga and Brahmaputra from the source to the mouth. Also show the important tributaries of both the rivers.
5

Map skills.

On the political map of the South America, draw the equator. Mark the countries located on the equator.
6

For fun.

Make a collage to show places of attractions in India. You can divide the classin different groups to show attractions based on mountain landscapes, coastal beaches, wildlife sanctuaries and places of historical importance.
7

Activity.

Collect under mentioned material and observe how destruction of trees effect the soil cover.


Material


(i) Three small flowerpots or food cans (e.g., cold drinks tin cans),


(ii) one big can with holes punched in the bottom (this will act as sprinkling can),


(iii) twelve coins or bottle caps


(iv) soil.