Human Environment Interactions: The Tropical and the Subtropical Region Class 7 Geography Chapter 8 Extra Questions and Answers Social Science CBSE Pdf free download are part of Extra Questions for Class 7 Social Science. Here we have given NCERT Extra Questions for Class 7 Social Science SST Geography Chapter 8 Human Environment Interactions: The Tropical and the Subtropical Region.
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Class 7 Geography Chapter 8 Extra Questions and Answers Human Environment Interactions: The Tropical and the Subtropical Region
Human Environment Interactions: The Tropical and the Subtropical Region Class 7 Extra Questions and Answer Geography Chapter 8 Very Short Answers Type
Question 1.
How does the people look different in different parts of the world?
Answer:
All the people living in different parts of the world also look different. Their food habits, clothes and habitation pattern are also different.
Question 2.
From where does the Amazon Flow?
Answer:
The river Amazon flows through tropical region which lies very close to the equator; between 10°N and 10°S. So, it is referred to as the equatorial region.
Question 3.
Why is the river Amazon referred to as the equatorial region?
Answer:
The river Amazon flows very close to the equator. So, it is referred to as the equatorial region.
Question 4.
How is the Amazon basin formed?
Answer:
Numerous tributaries join the Amazon River to form the Amazon basin.
Question 5.
Name the cities which are closely associated with Amazon basin.
Answer:
The river basin drains portions of Brazil, parts of Peru, Bolivia, Ecuador, Columbia and a small part of Venezuela.
Question 6.
Why are the forests thick and dense in the region?
Answer:
In the Amazon basin due to the heavy rainfall, forests are thick and dense.
Question 7.
Why does sunlight not reach to the earth in these forests?
Answer:
These forests are very thick and dense. The leaves of trees make a ‘roof on the upper side of the forests which do not allow the sunlight to reach the ground.
Question 8.
Name the plants which grow as plant parasites in the region of Amazon basin.
Answer:
Orchids, bromeliads grow as plant parasites.
Question 9.
Name the fruits grown in Amazon basin.
Answer:
They mainly grow tapioca, pineapple and sweet potato.
Question 10.
What do you understand about ‘cassava’:
Answer:
Around the Amazon basin the staple food is manioc which is also known as cassava that grows under the ground like the potato.
Question 11.
What do you understand about’ Maloca’?
Answer:
In the Amazon basin large houses made of wood is called ‘Maloca’ with a steeply slanting roof.
Question 12.
What is called ‘Maloca’?
Answer:
Large houses made of wood are called ‘Maloca’ with a steeply slanting roof.
Question 13.
What has become an excessive threat for fish ‘Susu’?
Answer:
The untreated industrial and urban wastes with high amount of chemicals are killing this species of fish.
Question 14.
Why are the rivers polluted?
Answer:
Many cities are located along the various rivers. The rivers are being polluted by the untreated wastage of cities and industries.
Human Environment Interactions: The Tropical and the Subtropical Region Class 7 Extra Questions and Answer Geography Chapter 8 Short Answers Type
Question 1.
Briefly describe about the climate of the Amazon basin.
Answer:
The Amazon basin stretches directly on the equator and is characterized by hot and wet climate through-out the year. Both day and nights are almost equally hot and humid. It rains almost every day. The day temperature is high and in night the temperature goes down. In the day and night humidity remains high.
Question 2.
Describe about the livelihood of the people living around the Amazon basin.
Answer:
People of the rainforests are mostly depending on the hunting and fishing. They also clear some forest area and grow the crops. They mainly grow tapioca, pineapple and sweet potato. Cash crops like coffee, maize and coca are also grown. The staple food is manioc, also known as cassava that grows under the ground like the potato. They also eat queen ants and egg sacs.
Question 3.
What are the main features of Ganga and Brahmaputra basin?
Answer:
The plains of the Ganga and the Brahmaputra, the mountains and the foothills of the Himalayas and the Sundarbans delta are the main features of Ganga and Brahmaputra basin. The area is dominated by monsoon climate. The monsoon brings rains from mid-June to mid-September. The summers are hot and the winters cool.
Question 4.
Describe about the wildlife in the Ganga and the Brahmaputra basin.
Answer:
In the Ganga and the Brahmaputra basin, there is a variety of wildlife. Elephants, tigers, deers and monkeys are common. The one-horned rhinoceros is found in the Brahmaputra plain. In the delta area, Bengal tigers, crocodiles and alligators are found. The most popular varieties of the fish are the rohu, catla and hilsa. Fish and rice is the staple diet of the people living in the area.
Question 5.
What do you understand about ‘Susu’? Describe in brief.
Answer:
In the fresh waters of River Ganga and River Brahmaputra, a variety of dolphin locally called Susu (also called blind dolphin) is found. The presence of Susu is an indication of the health of the river. The untreated industrial and urban wastes with high amount of chemicals are killing this species.
Question 6.
What are the means of transportation developed in the Ganga and the Brahmaputra basin?
Answer:
In the Ganga and the Brahmaputra basin all the four ways of transportation are well-developed. The roadways, railways, waterways and airways are used for transportation by the people.
Human Environment Interactions: The Tropical and the Subtropical Region Class 7 Extra Questions and Answer Geography Chapter 8 Long Answers Type
Question 1.
Describe the fauna found in the Amazon basin.
Answer:
The rainforest is rich in fauna. Birds such as toucans, hummingbirds etc., are found in the region. Animals like monkeys, sloth and ant-eating tapirs are found here.
Various species of reptiles and snakes also thrive in these forests. Crocodiles, snakes, pythons abound, Anaconda and boa constrictor are some of the species. Apart from this, the basin is home to thousands of species of insects, several species of fishes including the flesh-eating Piranha fish is also found in the river.
Question 2.
Write a short note on Ganga and Brahmaputra basin.
Answer:
The tributaries of rivers Ganga and Brahmaputra together form the Ganga-Brahmaputra basin in the Indian subcontinent. The basin lies in the sub-tropical region that is situated between 10°N to 30°N latitudes. The tributaries of the River Ganga like the Ghaghra, the Son, the Chambal, the Gandak, the Kosi and the tributaries of Brahmaputra drain it.
The plains of the Ganga and the Brahmaputra, the mountains and the foothills of the Himalayas and the Sundarbans delta are the main features of Ganga and Brahmaputra basin. The area is dominated by monsoon climate. The monsoon brings rains from mid-June to mid-September. The summers are hot and the winters cool.
Question 3.
Describe different types of climates and crops around Ganga-Brahmaputra basin.
Answer:
In the mountain area of Ganga-Brahmaputra basin lives less number of people; whereas, in the plain areas, density of population is very high. In the plain areas of Ganga and the Brahmaputra basin, the main crop is paddy. Since cultivation of paddy requires sufficient water, it is grown in the areas where the amount of rainfall is high.
Apart from paddy, wheat, maize, sorghum, gram and millets are the other crops that are grown. Cash crops like sugar cane and jute are also grown. Banana plantations are seen in the some areas of the plain. In parts of Uttarakhand, Sikkim and Arunachal Pradesh, coniferous trees like pine, deodar and fir can be seen because the climate is cool and the slopes are steep.
Question 4.
Write a short note on tourism in the Ganga and the Brahmaputra basin.
Answer:
Tourism is another important activity of the basin. Taj Mahal on the banks of River Yamuna in Agra, Allahabad on the confluence of the Rivers Ganga and Yamuna, Buddhists stupas in Uttar Pradesh and Bihar, Lucknow with its Imambara, Assam with Kaziranga and Manas with wildlife sanctuaries and Arunachal Pradesh with a distinct tribal culture are some of the places worth a visit.
Question 5.
What do you understand about Slash and Burn?
Answer:
Slash and Bum 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 loses 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.
Picture Based Questions Class 7 Geography Chapter 8 Human Environment Interactions: The Tropical and the Subtropical Region
1. Identify the following pictures:
Answer:
1. Toucans
2. Tapir
3. Paddy Cultivation
4. Tea Garden in Assam
Map-Based Questions Class 7 Geography Chapter 8 Human Environment Interactions: The Tropical and the Subtropical Region
Question 1.
On an outline map of India, mark the cities located at Ganga-Brahmaputra basin.
Answer:
