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

Bengal-tiger

Ncert solution for class 7 social science GEOGRAPHY chapter-08. 


1. Answer the following questions briefly:
Question.1 Name the continent in which the Amazon Basin in located.
Answer- South America.

Question. 2 What are the crops grown by the people of the Amazon Basin?
Answer- Tapioca, Pineapple, Sweet-potatoes, Cassava (manioc),Maize, coffee, and cocoa.

Question. 3 Name the birds that you are likely to find in the rain forests of the Amazon.
Answer- Toucans, Humming Birds, Bird of paradise .

Question. 4 What are the major cities located on the river Ganga?
Answer- Dev-Prayag, Haridwar, Varanasi, Patna

Question. 5 Where are the one-homed rhinoceros found?
Answer- Assam
 
2. Tick the correct answer:-

(A) Toucans are a type of
(i) birds              (ii) animals      (iii) crops
(B) Manioc is the staple food of
(i)  Ganga Basin        (ii) Africa    (iii) Amazon
(C) Kolkata is located on the river
(i)  Orange             (ii) Hooghly      (iii) Bhagirathi
(D) Deodars and firs are a type of
(i)  Coniferous trees         (ii) Deciduous trees   (iii) Shrubs
(E) Bengal tiger is found in
(i)   Mountains         (ii) Delta area     (iii) Amazon

Answer- (a)-i,  (b) iii, (c) ii, (d) i, (e) ii,

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

Answer- (i) f, (ii) d, (iii) g, (iv) c, (v) a,

4. Give reasons:-

Question.1  The rain forests are depleting.
Answer-
1.Developmental activities have been started in a big way, resulting in the cutting of rainforests for various purposes.
2. The indigenous population has been pushed out who practiced conservation activities of forests and wildlife.
3.Industries are being set up after clearing the forests. 
4.Lumbering has developed.

Question.2 Paddy is grown in the Ganga-Brahmaputra plains.
Answer-
A.Deep loamy soil is found in these plains due to the deposition of silt by the rivers for thousands of years.
B. Rivers in floods spread a new layer of alluvial every year. Hence it does not require manuring.
C. Canals from rivers supply ample water for irrigation of paddy fields during the dry season.
D.The lower portion of the plains receives adequate rainfall.

EXTRA QUESTIONS

Question.1 Name the cash crops that people of the rainforest grow.
Answer- Coffee, maize and cocoa.
Question.2 What is the population density of West Bengal and Bihar? 
Answer- Thepopulations density of west Bengal is 1029 and that of Bihar is 1102.
Question.3 Name the river on which Taj Mahal is situated?
Answer- River Yamuna.
Question.4 Name the cash crops grown in the Ganga-Brahmaputra Basin.
Answer- Sugarcane and jute.
Question.5 Name the animals Found in the Amazon forest.
Answer- Monkeys, sloth and ant-eating tapirs.