CBSE Class 7 Social Science Our Environment NCERT Solutions Chapter 8: Human Environment Interactions

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NCERT Solutions PDF Class 7 PDF

This chapter delves into the Human Environment Interactions within Tropical and Subtropical Regions, focusing on the Amazon and Ganga basins. Students will explore the geographical features, biodiversity, and human life in these diverse environments. The NCERT Solutions provide detailed answers to questions about the location of the Amazon Basin, the crops grown, the unique birds found in its rainforests, major cities along the River Ganga, and the habitat of the one-horned rhinoceros. It also clarifies that toucans are a type of bird. These solutions are designed to help students understand the interrelationship between humans and their environment in these specific regions, aiding in exam preparation by offering clear explanations and factual information.

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Quick info

BoardCBSE
ClassClass 7
SubjectSocial Science Our Environment
Session2026
LanguageEnglish
TypeNCERT Solutions
ChapterChapter 8

Chapter summary

Chapter 8 of CBSE Class 7 Social Science, 'Human Environment Interactions: The Tropical and Subtropical Region', focuses on understanding life in regions like the Amazon and Ganga basins. The NCERT Solutions cover key aspects such as the geography of the Amazon Basin, its flora and fauna, agricultural practices, and the urban settlements along the Ganga River. It also touches upon the conservation of endangered species like the one-horned rhinoceros. The solutions aim to provide clear, concise answers to the exercise questions, reinforcing the learning of these important environmental interactions.

Learning outcomes

  • Identify the geographical location of the Amazon Basin.
  • Describe the types of crops cultivated in the Amazon Basin.
  • Name common birds found in the Amazon rainforests.
  • List major cities situated on the banks of the River Ganga.
  • Locate the habitat of the one-horned rhinoceros.
  • Distinguish between birds, animals, and crops, specifically identifying toucans as birds.

Topics covered

Paper topics

  • Amazon Basin Geography
  • Tropical Rainforests
  • Agriculture in Amazon
  • Amazonian Biodiversity
  • Birds of the Amazon
  • River Ganga Cities
  • Human Settlements on Ganga
  • One-horned Rhinoceros Habitat
  • Brahmaputra Plain
  • Human-Environment Interaction
  • Tropical Regions
  • Subtropical Regions

Important topics

  • Amazon Basin Location and Features
  • Biodiversity in Tropical Rainforests
  • Human Settlements along River Ganga
  • Habitat of Endangered Species (One-horned Rhinoceros)
  • Human Impact on Tropical Environments

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Questions and Solutions

Question 1 (A)

Name the continent in which the Amazon Basin is located.
Solution: The Amazon Basin is situated on the continent of South America. This vast basin covers a significant portion, approximately 40%, of the South American continent and is characterized by the Amazon River and its extensive network of tributaries.

Question 1 (B)

What are the crops grown by the people of the Amazon Basin?
Solution: The inhabitants of the Amazon Basin cultivate a variety of crops. Staple food crops include tapioca, pineapple, and sweet potato. Additionally, they grow important cash crops such as coffee, maize, and cocoa. Their agricultural practice often involves clearing a portion of the forest for cultivation, followed by a period of fallow for the forest to regenerate, a method known as slash and burn agriculture.

Question 1 (C)

Name the birds that you are likely to find in the rainforests of the Amazon.
Solution: The lush rainforests of the Amazon are home to a diverse array of bird species. Commonly found birds include Toucans, which are distinguished by their large, colourful bills used for feeding, and Hummingbirds, noted as one of the smallest bird species globally. Birds of Paradise are also found in these regions.

Question 1 (D)

What are the major cities located on the River Ganga.
Solution: Several significant cities are located along the banks of the River Ganga. These include Allahabad, Kanpur, Varanasi, Lucknow, Patna, and Kolkata. The River Ganga is vital for these urban centers, providing sustenance and livelihood, and its banks host ancient settlements, with Varanasi being recognized as one of the world's oldest continuously inhabited cities.

Question 1 (E)

Where is the one-horned rhinoceros found?
Solution: The one-horned rhinoceros is primarily found in the Brahmaputra plain. The most significant population resides in the Kaziranga National Park, located in the state of Assam, India. This species is endangered, and conservation efforts are actively undertaken by governmental and non-governmental organizations to protect it.

Question 2 (A)

Tick the correct Answer. Toucans are a type of
  1. birds
  2. animals
  3. crops
Solution: The correct answer is birds. Toucans are a type of tropical bird characterized by their prominent, bright, and colourful bills. They are highly social creatures, often found living in groups.

Common mistakes

  • Confusing geographical locations of different river basins.
  • Inaccurate recall of specific flora and fauna in tropical regions.
  • Misidentifying the classification of animals or birds.

Revision tips

  • Map the locations of the Amazon Basin and the River Ganga to visualize the areas discussed.
  • Create flashcards for key animals, birds, and crops mentioned in the chapter.
  • Review the 'Fun Fact' about hummingbirds for interesting trivia.
  • Understand the concept of 'Slash and burn agriculture' as practiced in the Amazon.

Practice MCQs

Q1. In which continent is the Amazon Basin primarily located?

Q2. Which of the following is NOT a cash crop grown in the Amazon Basin?

Q3. Which of these birds is known for its large, colourful bill and is found in the Amazon rainforests?

Q4. Which of the following is a major city located on the banks of the River Ganga?

Q5. The one-horned rhinoceros is primarily found in which region?

Frequently asked questions

What is the main focus of CBSE Class 7 Social Science Chapter 8?

Chapter 8 focuses on Human Environment Interactions in Tropical and Subtropical Regions, specifically examining the Amazon Basin and the River Ganga area.

Where is the Amazon Basin located?

The Amazon Basin is primarily located in the continent of South America.

What kind of agriculture is practiced in the Amazon Basin?

People in the Amazon Basin practice 'Slash and burn agriculture', where a part of the forest is cleared for cultivation, and then left to regrow after harvesting.

Name some major cities on the River Ganga.

Major cities on the River Ganga include Allahabad, Kanpur, Varanasi, Lucknow, Patna, and Kolkata.

Where can the one-horned rhinoceros be found?

The one-horned rhinoceros is found in the Brahmaputra plain, with a significant population in Kaziranga National Park in Assam, India.

Are toucans birds or animals?

Toucans are a type of bird, easily identified by their large, colourful bills.

Important links

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