NCERT Solutions Class 7 Social Science Our Environment Chapter 8

NCERT Solutions for Class 7 Social Science (Geography) Our Environment Chapter-8

NCERT Solutions for Class 7 Geography Chapter 8 ‘Human-Environment Interactions’ can be accessed from Extramarks’ website. These solutions are created keeping in mind that all the answers provided are accurate and easy to comprehend. 

NCERT Solutions for Class 7 Social Science (Geography) Chapter 8 – HumanEnvironment Interactions- The Tropical and the Subtropical Region

NCERT Class 7 Geography Chapter 8 teaches students about various types of natural regions that exist on the Earth and the wildlife in the Amazon Basin, the variety of animals and life of people in the rainforests, and agricultural practices and the gradual degradation of the biologically diverse rainforests.

It focuses on two diverse regions-a) Life in the Amazon Basin which lies in the tropical region and b) Life in the Ganga-Brahmaputra Basin which lies in the subtropical region. 

Access NCERT Solutions for Class 7 Social Science (Geography) Chapter – 8 HumanEnvironment Interactions- The Tropical and the Subtropical Region

NCERT solutions are drafted by subject experts and faculty experts with years of experience in their respective subjects. Students can access these solutions from Extramark’s official website. These solutions assist students to make self-study more interesting and exciting to get a deeper understanding of the subject.

NCERT Solutions for Class 7 Social Science Geography 

NCERT Solutions for Social Science Class 7 are available at Extramark’s official website. These solutions help them to clarify their doubts and prepare them to be confident learners. . Students also know how to answer the questions in the exams more efficiently with these solutions.

Chapter 8 – Human Environmental Interactions-The Tropical and the Subtropical Region

Class 7 Geography Chapter 8 ‘Human Environmental Interactions-The Tropical and the Subtropical Region’ involves the lives of people in different natural regions around the world and their characteristic features.  

NCERT Solutions for Class 7 Geography Chapter 8 answers have been curated to bring conceptual clarity among the students and enhance their knowledge with concise responses that will assist them in their higher studies as well. The solutions have been designed in such a  way that students can revise these topics easily in a systematic and organized manner. These solutions are useful for both the teachers and the students and they can be accessed anywhere without much hassle.

The Tropical and the Subtropical Region

Chapter 8 allows students to thoroughly understand the topography of the earth, which involves desert regions, frozen lands, hot and wet rainforests, and much more. People in different regions are different from each other, but they share the same basic necessities of life such as food, shelter, clothes, etc. Even if we talk about children, they perform the same activities even in distant lands. They stay close to nature and even take care of nature.

Life in the Amazon Basin

Class 7 Geography Chapter 8 gives an idea of the Amazon Basin, a tropical region close to the equator. It is located between 10°N and 10°S; therefore, it is also called an equatorial region. To the east, the Amazon river reaches the Atlantic ocean. Several tributaries of the Amazon river collectively form the Amazon Basin. In this chapter, students will learn that the Amazon basin drains into some parts of Ecuador, Brazil, Peru, Venezuela, Bolivia, and Columbia.


Chapter 8 Human Environment interaction lets students study in depth the Amazon Basin. It stretches directly on the equator, the area experiences a hot and humid climate throughout the year. Both days and nights are equally hot and humid, and this region experiences rainfall almost daily. The temperature during the day is high, with intense humidity. The temperature drops at night, however, the humidity level remains the same.


There is a lot of rainfall in the Amazon Basin area, which is why you will see lush green forests with thick canopy there. Dense forests prevent the sunlight from reaching the ground, and therefore the ground stays completely dark and damp. It means the plants that can tolerate shade can only grow in this region which doesn’t require enough sunlight. This region is rich in flora and fauna. Birds such as hummingbirds and toucans also seen in India can be found here. Various animals like ant-eating tapirs, monkeys, and sloths can also be found here  Reptiles such as snakes, pythons, anaconda, etc. are found in abundance. Besides this, this region is also home to thousands of species of insects and a wide variety of fishes like the flesh-eating Piranha fish. 

People of the Rainforests

This chapter also talks about the people living in that rainforest area. People living there grow their food in small areas of land. Women take care of the crops while men hunt and do fishing. Tapioca, sweet potato, and pineapple are generally grown in the Amazon basin. Burn agriculture and splash are practiced by the people of this area. Manioc, an underground vegetable also called Cassava is the staple diet of the region.

You will also study why cash crops such as cocoa and coffee are grown in this region. Rainforests have an abundance of wood, and thus, some people living there live in thatched-roof houses, whereas others live in larger apartments known as Maloca with a steeply slanting roof.

You wiĺl also study how the Amazon basin region has changed over a period of time. In 1970 Trans Amazon highway made the Amazon basin more accessible with aircraft and helicopters. The population from this area relocated to new places where they still continue to cultivate their crops.

Due to various developmental activities, the rainforest area is getting destroyed and its biologically diverse rainforests have shrunk due to the destruction of forests. The incessant rainfall washed away the topsoil turning the lush green forest into dry and barren land. 

Life in The Ganga – Brahmaputra Basin

Ganga-Brahmaputra basin is another region you will study in Class 7 Geography Chapter 8. This basin is formed by the tributaries of Ganga and Brahmaputra in the Indian subcontinent. It lies in the subtropical region between 10°N to 30°N latitudes. This area experiences a monsoon climate which brings rain from mid-June to mid  September. Summers are hot and winters are cold in this region.

The topography of the basin is varied, and the distribution of the population is according to the environmental conditions. While the high mountain areas have less population due to inhospitable terrain whereas, plain areas are most convenient and suitable for habitation has a dense population. . As the land is most fertile in the plains, people there depend mostly on agriculture. Paddy is the most commonly grown crop in this area because it requires plenty of water.

Key Features of NCERT Solutions for Class Social Science Chapter 8

The key features of NCERT Solutions for Class 7 Geography Chapter 8 are:

  • The solutions cover all the solutions to the chapter-related questions in the NCERT textbook as well as additional important questions. 
  • The solutions are prepared by subject experts that help students efficiently prepare for the exam. They are useful for both the teachers and the students and they can be accessed anywhere without much hassle.
  • These solutions will help students clear their basics about the Chapter. All the Solutions for every subject are reliable and accurate. No wonder students have complete trust and faith in Extramarks.  
  • By practicing these solutions, students get to know the important points and help them revise quickly. So students are advised to get the solutions from the Extramarks website and enjoy the process of learning conveniently at their own pace. 
  • NCERT Solutions are framed by our experienced faculty who diligently follow the latest CBSE guidelines. Needless to say, they completely understand what is legitimate as per the board’s standard.

NCERT Class 7 Social Science Our Environment Chapterwise Solutions

In addition to Chapter 8, students can also access NCERT solutions for all the Chapters of  Geography and help reduce the exam stress and anxiety level among students to a great extent. With these solutions, students will get a better understanding of how to answer a question and score higher marks in exams.

NCERT Solutions for Class 7 Social Science

Extramarks provides NCERT solutions for the complete Social Science subject for Class 7 students. Our solutions ensure that students get the best guidance to enhance their knowledge and interest in the subject. The main aim of the solution experts is to encourage students in the subject so that they can learn it not just to pass the examination but with the zeal of exploring more and to go beyond their classroom learning.

Q.1 Answer the following questions.

(i) Name the continent in which the Amazon Basin is located.
(ii) What are the crops grown by the people of the Amazon Basin.
(iii) Name the birds that you are likely to find in the rainforests of the Amazon.
(iv) What are the major cities located on the River Ganga.
(v) Where is the one-horned rhinoceros found?


(i) Amazon Basin is located in South America. It lies in the tropical region.

(ii) The crops grown by the people of the Amazon Basin are tapioca, pineapple, and sweet potato. Manioc, also known as cassava is the staple food of the people of the Amazon Basin.

(iii) Birds found in the rainforests of the Amazon are toucans, humming birds, birds of paradise, etc.

(iv) Major cities located on the banks of River Ganga are Allahabad, Kanpur, Varanasi, Lucknow, Patna, and Kolkata.

(v) The one-horned rhinoceros is found in the Brahmaputra plain. Ninety percent of them are found in the Kaziranga National Park in Assam.

Q.2 Tick the correct answer.

(i) Toucans are a type of
(a) birds (b) animals (c) crops

(ii) Manioc is the staple food of
(a) Ganga Basin (b) Africa (c) Amazon

(iii) Kolkata is located on the river
(a) Orange (b) Hooghly (c) Bhagirathi

(iv) Deodars and firs are a type of
(a) Coniferous trees (b) Deciduous trees (c) shrubs

(v) Bengal tiger is found in
(a) mountains (b) delta area (c) Amazon


(i) (a) birds ✓

(ii) (c) Amazon ✓

(iii) (b) Hooghly ✓

(iv) (a) Coniferous trees ✓

(v) (b) delta area ✓

Q.3 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


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

Q.4 Give reasons.

(i) The rainforests are depleting.
(ii) Paddy is grown in the Ganga-Brahmaputra plains.


(i) The rainforests are depleting because of indiscriminate deforestation taking place to provide wood for various developmental activities that have started in the Amazon Basin. Forests are being cleared to the set up industries and building roads. Top soil is washed away due to heavy rains converting the forests into barren lands.

(ii) The soil of the Ganga-Brahmaputra plain is very fertile. These plains also receive adequate rainfall, which is necessary for the cultivation of paddy. Canals from river supply enough water to irrigate paddy fields during the dry season. All these factors contribute to the cultivation of paddy in these plains.

Q.5 Map skills.

(i) On an outline map of the Indian Sub-continent, draw the rivers Ganga and Brahmaputra from the source to the mouth. Also show the important tributaries of both the rivers.

(ii) On the political map of South America, draw the equator. Mark the countries through which the equator passes.




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FAQs (Frequently Asked Questions)

1. Why are rainforests being destroyed?

Due to certain developmental activities which are going at a fast pace, there has been afforestation in a large part of  the biologically diverse rainforest. The developmental activities also caused the relocation of the  indigenous population, where they continued to practice their distinctive ways of farming. Forests are being cleared to set up industries. Due to the reduction of a large area of rainforest, and the topsoil is getting washed off with the rainfall, the forest areas are transforming into barren lands.

2. Why is paddy grown in the Ganga-Brahmaputra region?

Paddy cultivation requires a sufficient amount of water for its growth. The Ganga Brahmaputra plains receive high rainfall and this region has  rich soil called alluvium which is ideal for agriculture. Additionally, even in the dry season, the canals from the river offer a lot of water to the paddy farms. Therefore, a sufficient amount of water supply helps  in cultivation  and harvesting of  the paddy crop.

3. Define tropical and subtropical regions?

Tropical regions are the regions of the earth that lie between the tropic line of Cancer and the tropic line of Capricorn. These are located near the equator. The north and south areas of the tropical regions are known as subtropical regions.