NCERT Solutions for Class 7 Geography Social Science Chapter 8 Human Interactions The Tropical and The Sub Tropical Regions | The Tropical and The Sub Tropical Regions. yash singhal edu tech world.

VERY SHORT QUESTIONS ANSWER.

Q1. Name the continent in which the Amazon Basin is located.

Ans: The Amazon Basin is located in South America.

Q2. What are the crops grown by the people of the Amazon Basin.

Ans: The crops grown by the people of the Amazon Basin are tapioca, pineapple and sweet potato.

Q3. Name the birds that you are likely to find in the rainforests of the Amazon.

Ans: The birds that are likely to be found in the rainforests of Amazon are toucans, humming birds and the birds of paradise, with their brilliantly colored plumage.

Q4. What are the major cities located on the River Ganga?

Ans: The major cities located on the River Ganga are Allahabad, Kanpur, Varanasi, Lucknow, Patna and Kolkata.

Q5. Where is the one-horned rhinoceros found?

Ans: The one-horned rhinoceros is found in the Brahmaputra Plain.

SHORT QUESTIONS ANSWER.

Q1. What do the people of Amazon rainforest grow?

Ans. They mainly grow tapioca, pineapple and sweet potato.

Q2. What are the cash crops grown by people of Amazon Basin?

Ans. The cash crops grown by people of Amazon Basin are coffee, maize and cocoa.

Q3. What is called “Maloca”?

Ans. Large apartment-like houses called “Maloca” with a steeply slanting roof.

Q4. What is called the river’s mouth?

Ans. The place where a river flows into another body of water is called the river’s mouth.

Q5. Who was the first person to discover the Amazon River?

Ans. Francisco de Orellana was a Spanish explorer who discovered the Amazon River.

Q6. Name the countries of the basin through which the equator passes.

Ans. The countries of the basin through which the equator passes are Brazil, Ecuador and Columbia.

Q7. Where Ganga and Brahmaputra basin lies?

Ans. The basin lies in the sub-tropical region that is situated between 10°N to 30°N latitudes.

Q8. What is the Ganga Brahmaputra basin?

Ans. The tributaries of rivers Ganga and Brahmaputra together form the Ganga-Brahmaputra basin in the Indian subcontinent.

Q9. What are the other names of Brahmaputra?

Ans. Tibet - Yarlung Tsangpo, Arunachal Pradesh – Dihang, Assam – Brahmaputra, Bangladesh – Jamuna.

LONG QUESTIONS ANSWER.

Q1. What is slash and burn practice?

Ans.

Slash and Burn is a way of cultivating land where farmers clear a piece of land by slashing or cutting down trees and bushes.

These are then burnt, which releases the nutrients into the soil. Now crops are grown in this cleared field for a few years.

After repeatedly using the patch of land, the soil looses its nutrients. So it is abandoned.

Then they clear another plot of land to plant. In the meantime young trees grow in the old field.

In this way soil fertility is restored. People can then return to it and start cultivating it again.

Q2. What is the type of climate of the Amazon basin?

Ans.

The Amazon Basin stretches directly on the equator and is characterized by hot and wet climate throughout the year.

Both day and nights are almost equally hot and humid. The skin feels sticky.

It rains almost every day, that too without much warning. The day temperatures are high with very high humidity.

At night the temperature goes down but the humidity remains high.

Tick the correct answer.

(i) Toucans are a type of

(a) birds

(b) animals

(c) crops

Answer: a

(ii) Manioc is the staple food of

(a) Ganga Basin

(b) Africa

(c) Amazon

Answer: c

(iii) Kolkata is located on the river

(a) Orange

(b) Hooghly

(c) Bhagirathi

Answer: b

(iv) Deodars and firs are a type of

(a) Coniferous trees

(b) Deciduous trees

(c) shrubs

Answer: a

(v) Bengal tiger is found in

(a) mountains

(b) delta area

(c) Amazon

Answer: b

Give reasons.

(i) The rainforests are depleting.

Ans: The rainforests are depleting because of the large scale development and industrial activities. Deforestation has increased, because of which the topsoil of land is getting washed away, decreasing the soil fertility. As a result, trees are unable to grow and the rainforests are depleting.

(ii) Paddy is grown in the Ganga-Brahmaputra plains.

Ans: Paddy is grown in the Ganga Brahmaputra plains, because the cultivation of Paddy requires sufficient water for growth. So, it can only grow in areas of high rainfall.

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) Cotton textile	(f) Varanasi
(ii) Maloca	(d) Slanting roof
(iii) Piranha	(g) Fish
(iv) Silk worm	(c) Sericulture
(v) Kaziranga	(a) Assam