Important Questions Class 7 Social Science Our Environment Chapter 8
Geography places the understanding of social and physical processes in the context of location by acknowledging the vast diversity in cultures, political systems, economies, landscapes, and ecosystems worldwide and examines the relationships between them.. Understanding the causes of differences and inequalities across places and social groups forms the basis of many recent developments in human geography. The eighth chapter of Class 7 Social Science Our Environment is Human Environment Interactions – The tropical and the subtropical region. Everything around us consists of our environment. Agriculture produced human settlements, and rivers benefited agriculture. Around rivers, early human communities began to grow. In many natural regions of the world, there are differences in human existence and culture. Students can consult Chapter 8 Class 7 Social Science Our Environment Important Questions to learn about Human-Environment Interactions.
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Important Questions Class 7 Social Science Our Environment Chapter 8- with Solutions
The Social Science experience faculty members of Extramarks have presented an entire list of Important Questions Class 7 Social Science Our Environment Chapter 8 using different primary and secondary sources. Our environment is made up of everything around us. Human settlements were brought forth by agriculture, and rivers aided agriculture. Early human settlements grew around rivers. There are variations in human existence and culture in the diverse natural regions of the world.. Important Questions Class 7 Social Science Our Environment Chapter 8 better comprehends the chapter Human Environment Interactions- The tropical and the subtropical region. These questions and solutions help students in thorough understanding of the chapter.
Mentioned below are a few Important Questions Class 7 Social Science Our Environment Chapter 8 and solutions:
Question 1. Where is the one-horned rhinoceros found?
Answer 1. The Brahmaputra Plain is home to the one-horned rhinoceros.
Question 2. An important industry in the Ganga-Brahmaputra basin is tourism. Explain.
Answer 2.Tourism has become an important industry in the Ganga-Brahmaputra basin due to the huge tourist attractions in the Ganga Brahmaputra plain.
- Bounded on the north by the mountains and foothills of the Himalayas, the Ganga-Brahmaputra plain has an abundance of natural resources. The fertile soil of Ganga-Brahmaputra region is ideal for cultivation and agriculture is the main source of livelihood.
- Also, since the beginning of human evolution, these basins have seen the emergence of several important towns and cities. Many such places have grown to be well-known tourist attractions due to the expansion of big cities. Some of these locations are:
- The Taj Mahal in Agra, Buddhist stupas in Uttar Pradesh and Bihar, the Imambara in Lucknow, and other historical places.
- The mountain regions of Ganga Brahmaputra basin with steep slopes have sparse populations due to inhospitable terrain. However, these regions are abundant in fauna and flora. . The most beautiful sites to visit in these areas are mountains and waterfalls. For instance, many visitors travel to the mountainous regions of Arunachal Pradesh to see the vibrant tribal culture and “Tawang monastery” which is the largest monastery in India.
- Assam, a biodiversity hotspot, in the north east has five national parks and several wildlife and bird sanctuaries. Manas National Park and Kaziranga National Park are two examples.
- Varanasi,also known as Kashi and Banaras is the most revered religious destination in India. It has many sacred and cultural places which are famous for its production of silks and brocades with gold and silver thread work.. .
- Sunderban delta is the world’s largest delta and is famous for its unique mangrove forests and globally endangered species including the Royal Bengal Tiger and so on.
- Due to these well-known tourist attractions, the Ganga Brahmaputra plain now has a significant tourism industry.
Question 3. Name the continent where the Amazon Basin is located.
Answer 3. South America is where you may find the Amazon Basin.
Question 4. Talk about the life of people in the rainforest..
Answer 4. Tropical rainforest is home to indegenious people who live in rainforests for food, shelter and medicine.
- Compared to individuals living outside the rainforest, those living in the forest live challenging lives.
- People cultivate their crops in tiny spaces by clearing the trees.
- The women engage in “slash and burn agriculture” to cultivate cash crops like maize, coffee, and cocoa, as well as crops like pineapple, sweet potato, and tapioca.
- The major activity of the men is hunting and fishing.
- Manioc, called cassava, a root vegetable that looks like a potato and grows underground, is the main diet of these people.
- They also consume the queen ants and egg sacs.
- Some people live in big buildings known as “malocas,” while others dwell in thatched homes.
- The lives of these indigenous people have been harder as the jungles have grown more accessible to outsiders. They have relocated to new surroundings after being driven from their original locations but continue their distinctive ways of farming.
Question 5. What are the major cities located on the banks of River Ganga?
Answer 5. Kolkata, Kanpur, Varanasi, Lucknow, Patna, and Allahabad are the principal cities on the banks of the Ganges River.
Question 6. Make a note of the Ganga-Brahmaputra Basin’s transportation options.
Answer 6. The following are the transportation options in the Ganga-Brahmaputra Basin:
- The Ganga-Brahmaputra basin has evolved all four modes of transportation i.e roadways, railways, waterways and airways.
- Roadways and railways are used to move people and goods between different locations in plain areas..
- The use of waterways for transportation, especially along rivers, is efficient—an important port on the Hooghly River in Kolkata.
- Airways is the fastest and the most expensive of all.There are several airports such as Indira Gandhi International Airport in Delhi; Chennai International Airport,Chennai, Sardar Vallabh Bhai Patel International Airport Ahmedabad and so on. .
Question 7. What are the crops grown by the people of the Amazon Basin?
Answer 7. Pineapple ,tapioca, and sweet potato are the main crops farmed by the inhabitants of the Amazon Basin.
Question 8. How will you know if the removal of trees affects the soil?
Answer 8. The following approach may be used to observe how the loss of soil affects the trees:
- First, collect the necessary items : a small bag of soil, twelve coins, three little food cans, and one large can with holes punched at the bottom. With the help of a parent or teacher, these arrangements may be made with ease at home or school.
- The three little cans need to be completely filled with soil in the next stage.
- The soil of each container must then contain four pennies to block the soil from slipping through the holes.
- Water is to be sprayed over the three cans once the cans with holes have been filled with water.
- Water should be sprinkled at a different rate for each can: slowly for the first, moderately for the second, and heavily for the third.
The water poured represents rainfall, and the coins represent tree coverings; therefore, these are the only steps we need to complete this experiment. Unprotected soil gradually moves out due to water sprinkling, and this phenomenon is most common in areas that receive a lot of rain or strong water sprinkling. Additionally, it has been seen that the tree cover , or in this case, the “coins,” attempt to stop the mud from draining through the holes . Lands with no vegetation or tree cover will experience a rapid loss of soil. . Therefore, by conducting this straightforward experiment, anybody may see how the loss of trees affects the soil. The children will learn from this project that deforestation and tree loss are bad since they deplete the soil.
Question 9. Name the birds you are likely to find in the rainforests of the Amazon.
Answer 9. Toucans, hummingbirds, and the brightly coloured birds of paradise are the birds most likely to be found in the Amazonian jungle.
Question 10. Explain a collage.
Answer 10.
- A collage is a work of art created by glueing numerous objects, such as photos and scraps of paper, on a chart or other similar surfaces.
- To put it another way, it is a sort of art that entails skillfully assembling images and words.
- For instance, a stunning collage might be made by assembling many photographs of the mountainous terrain. The photos or pictures might be arranged randomly or in geometric forms.
(Students can try this subject by collecting images of various landscapes—such as beaches, mountains, iconic locations, wildlife refuges, etc.—and pasting them together to make a collage.)
Question 11. What is the major occupation of the inhabitants of the Ganga-Brahmaputra basin?
Answer 11. The following are the primary occupations of the residents in the Ganga-Brahmaputra basin:
- In the Ganga and Brahmaputra basins, agriculture is the major occupation. In this basin, crops including rice, wheat, gram , millets, and maize are grown. Additionally, cash crops like sugarcane and jute are grown. Crops are produced on terraces in the mountains and hills where slopes are gentle..
- Many individuals in this area also engage in sericulture, raising silkworms and producing silk.
- There are industries in towns and cities where people work in various jobs.
- Many individuals are engaged in the tourism industry, which is also extremely active in this region. .
Question 12. What impact do the Ganga and Brahmaputra river basins have on population distribution?
Answer 12. The unequal distribution of population in the Ganga-Brahmaputra basin area impact due to the following reasons:
- The mountainous areas are sparsely populated than the plain areas of the Ganga-Brahmaputra basin. The steep slopes make the land uninhabitable and inhospitable.
- On the other hand, the plain parts of the basin’s terrain offer the most favourable circumstances for human survival. The plains are conducive to human life, agriculture is the main occupation, the rich alluvial soil is ideal for cultivation of crops which supports their livelihood.
- Yet another reason why this region is densely populated is that it plays an important role in the economic growth by promoting fisheries, navigation, transportation, and energy production.
Question 13. Describe the Ganga-Brahmaputra Basin’s physiography.
Answer 13. In the Indian subcontinent, the Ganga-Brahmaputra basin comprises the tributaries of the rivers Ganga and Brahmaputra.
- It is situated in a subtropical region..
- It is situated between the latitudes of 10°N and 30°N.
The tributaries of the River Ganga that drain the Ganga-Brahmaputra basin are, the Ghagra, the Son, the Chambal, the Gandak, and the Kosi.
- The tributaries of Brahmaputra river are: Dibang and Dihang Dhansiri and Lohit.
The Ganga-Brahmaputra Basin has the following primary physiographic characteristics:
- Himalayan mountains and foothills
- Delta of Sundarbans
- The plain is dotted with ox-bow lakes.
Question 14. Give an explanation of slash-and-burn farming.
Answer 14. People of the rainforest practice “Slash-and-burn” farming.
- Farmers clean a plot of land by slashing or chopping down trees and shrubs as a method of land cultivation.
- The nutrients are subsequently released into the soil when they are burned.
- For a few years, fresh crops were cultivated on this cleared land.
The soil loses its nutrients after being used repeatedly..
- Thus, it is left fallow. .
- Then they prepare another piece for cultivation..
Young trees are currently growing in the former field.
- Soil fertility is reintroduced in this way (restored).
- Then, people return to it.
- They continue the procedure and begin cultivating again..
Question 15. What changes have occurred in the life of people in the Amazon Basin?
Answer 15. The life of people in the Amazon basin is gradually changing..
Initially, the river was the only mode of transportation to the heart of the forest.
- Modern transportation methods have advanced significantly. The Trans Amazon highway opened up the whole rainforest in 1970.
- Helicopters and aircraft are also employed to go to other locations.
- The indigenous (aboriginal) people have been driven away.
- There are long-term effects of the destruction of biologically diverse rainforests due to the developmental activities in the Amazon basin.
Question 16. Describe a day in the life of the people of the Amazon Basin’s rain woods.
Answer 16.
After the disappearance of diverse rainforests, people had to move to new areas where they cultivate most of their food in limited spaces.
- Men near waterways do fishing and hunting.
- Women look after the cultivation of crops.
- Tapioca, pineapple, and sweet potatoes are their principal crops.
- Given the uncertainty of hunting and fishing, the women provide for their families by feeding them the vegetables they cultivate..
- “Slash and burn agriculture” is what they practise.
- Manioc is a common meal. It also goes by the name cassava. It is grown beneath the ground just like the potatoes..
- The inhabitants also consume egg sacs and queen ants.
- The Amazon Basin also supports the production of cash commodities, including coffee, maize, and cocoa.
A lot of the timber for the homes comes from the rainforests.
- Some families reside in thatched huts shaped like a beehive.
- Other big houses that resemble apartments go by the name “Maloca.” To facilitate easy rainwater drainage, it has steep sloping roofs.
Question 17. Describe the Amazon Basin’s rain forests and wildlife.
Answer 17. The rain forests in the Amazon Basin stretches directly on the equator :
- It frequently rains in the Amazon basin.
- It has dense forest cover and both night and day are equally hot and humid..
In fact, they are so thick and dense that sunlight cannot penetrate the “roof” made by leaves and branches.
- The earth is still damp and dark.
- Here, only plants that tolerate the shadow flourish.
- Bromeliads and orchids are parasitic plants that grow.
Wildlife in the Amazon Basin:
- The wildlife in the rainforests is found in abundance..
- With their vividly coloured plumage and enormous bills for feeding, birds like toucans, hummingbirds, and birds of paradise set them apart from birds found in India.
- In the forests, these birds also make a lot of noise.
- You may find creatures like sloths, monkeys, and ant-eating tapirs are found here.
- These rainforests also include a variety of snake and reptile species.
- Pythons, crocodiles, and snakes are common.
- Among the species are the anaconda and the boa constrictor.
- Numerous bug species may be found in the Amazon basin.
- The river is home to several fish species, including the flesh-eating Piranha fish.
- In reality, the Amazon basin has remarkably rich diversity of species.
Question 18. Describe the Amazon Basin’s climate.
Answer 18. The Amazon Basin’s climate:
- The Amazon Basin lies in the equatorial region. .
- The entire year enjoys a hot and humid climate..
- Nights and days are about equally warm and humid.
- The average annual temperature is around 25 degree and 28 degree Celsius with no distinction between summer and winter seasons.
- Excessive daytime temperatures are accompanied by high humidity.
- Even if the temperature drops at night, the humidity level is considerable.
The above section of Important Questions Class 7 Social Science Our Environment Chapter 8 covers all the chapter’s important concepts.
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