Human Environment Interactions - The Tropical and Subtropical Region Extra Questions Chapter 8 Class 7 Geography

Given Chapter 8 Human Environment Interactions - The Tropical and Subtropical Region Class 7 Geography Extra Questions is very helpful in understanding the key points present inside the chapter. Extra Questions for Class 7 Geography can be used in knowing what can come in the examinations.

Human Environment Interactions - The Tropical and Subtropical Region Extra Questions Chapter 8 Class 7 Geography


Chapter 8 Natural Vegetation and Wildlife Very Short Answer Questions (VSAQs):


1. The place where a river flows into another body of water is called the ____.

Answer

River’s mouth.

2. The Amazon basin lies between ______ latitude.

Answer

10 degree north and 10 degree south.

3. Name some tributaries of the River Brahmaputra.

Answer

Tsangpo and Lhasa.

4. Where terraces built and for what purpose?

Answer

Terraces are built on steep slopes in the mountains and hills to create flat surfaces to grow crops on them.

5. Name the region in which the river Amazon flows through?

Answer

Equatorial.

6. Where is the one-horned rhinoceros found?
Answer

The one-horned rhinoceros is found in Kaziranga Wildlife Sanctuary in Assam.

7. What is Maloca?

Answer

The large apartment like houses called Maloca with a steepy slanting roof.

8. What are bromeliads?

Answer

Bromeliads is special rainforest plant that store water in their leaves. Animal like frogs uses these pockets of water for laying their eggs.

9. Why sunlight does not reach the ground in rainforest?

Answer

The forest is in fact so thick that dense roof created by leaves and branches does not allow the sunlight to reach the ground.

10. Name the region in which Ganga Brahmaputra basin is located?

Answer

The Ganga Brahmaputra basin lies in the sub tropical region that is situated between 10 degree north to 30 degree north latitudes.

11. Name some important cities located on the river Ganga?

Answer

Some important cities located on the river Ganga are-Allahabad, Kanpur ,Varanasi, Lucknow, Patna and Kolkata.

12. Name the tropical deciduous trees grow in the Ganga and Brahmaputra.

Answer

In the Ganga and Brahmaputra plain tropical deciduous trees grow along with teak, Sal and peepal.

13. What are tributaries?

Answer

Tributaries are small rivers that join the main river.

14. How is a river basin formed?

Answer

The main river along with its tributaries that drain an area forms a river basin or the catchment area.

Chapter 8 Natural Vegetation and Wildlife Short Answer Questions (SAQs):


1. What is slash and burn practice?

Answer

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 the cleared field for o 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 mean time young trees grow in the old field. In this way soil fertility is restored.

2. Why is the Ganga-Brahmaputra thickly populated?

Answer

The plain area of the Ganga-Brahmaputra basin provides the most suitable land for human habitation. The soil is fertile. Agriculture is the main occupation of the people whose flat land abundantly available to grow crops. These factors make this basin thickly populated.

3. Mention the location and climate of the Amazon basin?

Answer

The Amazon basin, the world’s largest river basin, is located in between the Guyana Highlands and the Brazalian Highlands. It lies close to the equator, between 10°N and 10°S. The river Amazon flows through this region.
The Amazon basin stretches directly on the equator and is characterized by hot and wet climate throughout the year. Both day and night are equally hot and humid. It rains almost everyday. The day temperatures are high with very high humidity. At night the temperature goes down but the humidity remains high.

4. What changes have occurred with life of the people of Amazon Basin in recent times?

Answer

Before 1970, it was almost impossible for the people to reach the heart of the forest by roads. It could be reached only by navigating the river. In 1970 the Trans Amazon highway was built which made all parts of the rainforest accessible. Aircrafts and helicopters are also used for reaching various places. The indigenous population was pushed out from the area and forced to settle in new areas.

5. Describe the topography of the Ganga-Brahmaputra basin.

Answer

The area of the Ganga-Brahmaputra basin has varied topography. The mountain areas with steep slopes have inhospitable terrain. Therefore a small number of people live in these areas. The plain area is dotted with ox-bow lakes. It provides the most suitable land for human habitation. The vegetation cover of the area varies according to the type of landforms. The delta area is covered with the mangrove forests. The Ganga-Brahmaputra plain has several big towns and cities such as Allahabad, Kanpur, Varanasi, Lucknow, Patna and Kolkata. All the four ways of transport are well-developed in this basin.

6. How is a lake a source of livelihood? Explain giving example of the lake situated in the Matwali Maun village in Bihar.

Answer

There is an ox-bow lake in the Matwali Manu village in Bihar. This lake provides livehood to the community of fishermen of the village. The fishermen cleaned the lake to cultivate different varieties of fish. The local weed that grows in the lake is the food of the fish. The land around the lake is fertile. Hence the fishermen grow crops like paddy, maize and pulses. The buffalo is used to plough the land. The community is satisfied. There is enough fish catch from the lake to eat as well as to sell in the neighbouring markets.

Chapter 8 Natural Vegetation and Wildlife Long Answer Questions (LAQs):


1. A huge variety of life is found in the rainforests of the Amazon. Explain.

Answer

The rainforests of the Amazon basin are very rich in fauna. Birds such as toucans, hummingbirds, birds of paradise with their brilliantly coloured plumage, oversized bills for eating, make them different from the birds we see in our daily life. Animals include monkeys, sloth and ant-eating tapirs. Various species of reptiles and snake also thrive in these forests. Crocodiles, snakes and pythons are found there in a huge number. Anaconda and boa constrictor are some of the species found there.
The Amazon basin is also home to thousands of species of insects. Several species of fishes including the flesheating piranha fest is also found in the river. Thus, this basin has wildlife in abundance.

2. Describe the flora and fauna found in the Ganga-Brahmaputra basin.

Answer

The Ganga-Brahmaputra basin is rich in flora and fauna.
• Flora: In the GangaBrahmaputra plain tropical deciduous trees grow, along with teak, sal and peepal. Thick bamboo groves are common in the Brahmaputra plain. The delta area is covered with the mangrove forests. In parts of Uttarakhand, Sikkim and Arunachal Pradesh, coniferous trees like pine, deodar and fir can be seen.
• Fauna: There is a variety of wildlife in the GangaBrahmaputra basin. Elephants, tigers, deer and monkeys are common. The one-horned rhinoceros is found in the Brahmaputra plain. In the delta, Bengal tiger, alligator and crocodiles are found. Aquatic life abounds in the fresh river waters, the lakes and the Bay of Bengal sea. The most popular varieties of the fish are the rohu, catla and hilsa.
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