Class 7 Geography Chapter 8 Human Environment Interactions: The Tropical and the Subtropical Region Important Questions and Answers

CBSE Class 7 Geography Chapter 8 Human Environment Interactions: The Tropical and the Subtropical Region Important Questions and answers cover all the major concepts of the chapter. Solving answers of these important questions help students to revise the Chapter most competently. We prepared these questions as per the latest NCERT book and CBSE syllabus. Practising class 7 important questions before the exam will ensure excellent marks in the exam.

Human Environment Interactions: The Tropical and the Subtropical Region Class 7 Geography Important Questions

Very Short Answer Type Question

1. What type of vegetation grows in the Amazon forest?
Answer: Only shade tolerant vegetation grow here.

2. Name the animals Found in the Amazon forest.
Answer: Monkeys, sloth and ant-eating tapirs.

3. What do men and women of the rainforest do?
Answer: Men hunt and fish along the rivers and women take care of the crops.

4. What do the people of the rainforest grow?
Answer: They grow tapioca, pineapple and sweet potato.

5. Name the cash crops that people of the rainforest grow.
Answer: Coffee, maize and cocoa.

6. What is the population density of West Bengal and Bihar? .
Answer: The populations density of west Bengal is 904 and that of Bihar is 880.

7. What is susu? What does its presence indicate?
Answer: In the fresh water of River Ganga and River Brahmaputra, a variety of dolphin is found which is locally known as susu. Its presence indicates the health of the river.

8. How and why are terraces built? [V. Imp.]
Answer: Tarraces are built on steep slopes to create flat surfaces on which crops are grown.

9. By what names is the river Brahmaputra known in different places.
Answer: Meghna, Padma, Dehang, Debang, Yamuna, etc.

10. What leads to the pollution of the rivers?  [V. Imp.]
Answer: The wastewater from these towns and industries is discharged into the rivers. This leads to the pollution of the rivers.

11. Name the river on which Taj Mahal is situated?
Answer: River Yamuna.

12. Name the cash crops grown in the Ganga-Brahmaputra Basin.
Answer: Sugarcane and jute.

Short Answer Type Questions

1: The sunlight does not reach the ground in rainforest. Why?

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.

2: What is Maloca?

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

3: 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.

4: What are the main features of Ganga Brahmaputra basin?

Answer: The plain of the Ganga and the Brahmaputra, the mountains of the foot hills of Himalaya and the sunder bans delta are the main features of this basin.

5: 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.

6: What are bromeliads?

Answer: Bromeliads is a rain forest plant. Bromeliads is special plant that store water in their leaves. Animal like frogs uses these pockets of water for laying their eggs.

7: 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.

8. Write a short note on the climate of the Amazon Basin.

Answer: The climate of the Amazon Basin is characterised by hot and wet climate throughout the year. Both day and nights and almost 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.

9. What do you know about the location of the Ganga-Brahmaputra Basin? Mention the climate of this Basin.

Answer: The Ganga-Brahmaputra Basin lies in the sub-tropical region that is situated between 10°N to 30°N latitudes. The tributaries of river Ganga such as the Ghaghra, the son, the Chambal, the Gandak, the Kosi and the tributaries of Brahmaputra drain it.

The area of the Ganga-Brahmaputra Basin is dominated by monsoon climate. The monsoon brings rains from mid-June to mid-September. The summers are hot and the winters are cool.

10. The Ganga-Brahmaputra Basin has varied topography. How does it affect the distribution of population there?  [V. Imp.]

Answer: The basin area has varied topography. As a result, the distribution of population is not even everywhere in the area. The mountain areas with steep slopes have inhospitable terrain. Therefore less number of people live in the mountain area of the Ganga-Brahmaputra basin. The plain area provides the most suitable land for human habitation. Therefore, the density of population of the plains is very high.

Long Answer Type Questions

1. What is the main activity of the people of the Ganga-Brahmaputra Basin? Give an account of it.

Answer: The main activity of the people of the Ganga-Brahmaputra Basin is agriculture. Paddy is the main crop here. Other crops grown here are wheat, maize, sorgham gram and millets. Cash crops like sugarcane and jute are also grown. Banana plantations are seen in some areas in the plain. In the West Bengal and Assam tea is grown in plantations. Silk is produced through the cultivation of silk worms in parts of Bihar and Assam. In the mountains and hills, where the slopes are gentle crops are grown on terraces.

2. How can you say that the life of the people of the Amazon basin is changing?[Imp.]

Answer: Time is moving ahead very fast. This has resulted in the change of the life style of the people everywhere. The life of the people of the Amazon basin is also changing, though not at fast speed. In the old days it was difficult to reach the heart of the forest. In 1970 the Trans Amazon highway made all parts of the rain forest accessible. Aircrafts and helicopters are also used for reaching various places. The indigenous populations was pushed out from the area and forced to settle in new areas.

3. What do you know about the wildlife of the Ganga-Brahmaputra basin?     [V. Imp.]

Answer: The Ganga-Brahmaputra Basin is rich in wildlife. A variety of animals are found here. Elephants, tigers, deer and monkeys are common. The one-horned rhinoceros is found in the Brahmaputra plain. In the delta region, Bengal tiger, crocodiles and alligator are found. Aquatic life abounds in the fresh river waters, the lakes and the Bay of Bengal Sea. Popular varieties to fish such as catla, rohu and hilsa can be found here.

4. How is tourism an important activity in the Ganga-Brahmaputra basin?

Answer: The Ganga-Brahmaputra plain has several big towns and cities, such as Allahabad, Kanpur, Varanasi, Lucknow, Patna and Kolkata. All these places are important from tourism point of view. Taj Mahal on the bank of river yamuna in Agra is a famous tourist place. Allahabad is situated on the confluence of the river Ganga and Yamuna. Several people visit this place everyday to have a holy dip in it. Buddhist stupas in Uttar Pradesh and Bihar, Lucknow with its Imambara, Assam with Kaziranga and Manas with wildlife sanctuaries are some other places in the basin where people from different parts of the country and abroad go with great enthusiasm.

5: 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.

6. How is the rainforest of the Amazon basin rich in fauna?

Answer: The rainforest of the Amazon basin is very rich in fauna. A variety of birds such as toucans, humming birds, bird of paradise with their brilliantly coloured. Plumage and oversized bills for eating are found here.

These birds also make loud sounds in the forests. Animals like monkeys, sloth and ant-eating tapirs are found here. Various species of reptiles and snakes also thrive in these jungles. A number of crocodiles, snakes and pythons are also found here. Anaconda and boa constrictor are some of the species. The basin is also the home to thousands of species of insects. Several species of fishes including the flesh-eating Piranha fish is also found in the river.

7. What do you know about the people of the rainforest?   [V- Imp.]

Answer: The people of the Amazon basin practise slash and bum agriculture. They grow most of their food in small areas after clearing some trees in the forest. Men hunt and fish along the rivers and women take care of the crops. They mainly grow tapioca, pineapple and sweet potato. As hunting and fishing are uncertain it is the women who support the family. They feed them the vegetables that they grow. Their staple food is manioc, also known as cassava that grows under the ground like potato. They also eat queen ants and egg sacs. Cash crops like coffee, maize and cocoa are also grown.

People get wood for their houses from the rainforests. They build thatched houses shaped like beehives. There are also malocas there which are large apartment ­like houses with a steeply slanting roof.

The Amazon basin is developing day by day. In 1970 the trans Amazon highway made all parts of the rainforest accessible. With the change of time the people’s life style is also changing gradually.