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World Geography: Some Glimpses
Class 8 Social Science – Chapter 1 Part 2
0°00’N, 0°00’E — every place on earth has an address. Read on to learn how it’s written.
Chapter at a Glance
A quick overview of the major ideas covered in this chapter.
What is this chapter about?
NCERT Question Answers
Click any question to reveal a simple, exam-ready answer.
Q1.Why do all map projections have some amount of distortion?
Q2.What makes the Tibetan Plateau unique?
Q3.Why are coral reefs called the ‘rainforests of the sea’?
Q4.How do the oceans help to regulate the Earth’s climate?
Q5.What is the main reason for the Great Barrier Reef facing threats today?
Q6.Why is the Amazon Rainforest often called the ‘Lungs of the Earth’?
Q7.Choose two different types of geographical features you have explored in this chapter. Write short paragraphs on how they influence the flora and fauna or human lives in that area. Do they also have an implication for the whole globe?
Mountains: Mountains influence the climate and provide water to people, plants and animals. Snow and glaciers in mountains are important sources of freshwater. Mountains also provide habitats for many plants and animals and contain useful natural resources. Rivers flowing from mountains support agriculture and human settlements.
Deserts: Deserts receive very little rainfall, so plants and animals living there have special adaptations to survive. People also adapt their lifestyle to the dry and harsh conditions. Deserts can support unique ecosystems and human communities. Changes in deserts can have wider effects because climate change and human activities can disturb these fragile environments.
Thus, geographical features do not affect only the people and wildlife living nearby. They can also influence climate, water resources, ecosystems and human activities on a much larger scale.
Q8.Discuss how oceans influence climate and trade. Use examples from the Indian and Pacific Oceans.
Oceans play an important role in controlling the Earth’s climate. They absorb heat, release it slowly and provide moisture for clouds and rainfall. Ocean currents also carry warm and cold water and influence the climate of coastal regions.
Oceans are also important for trade and transport. The Indian Ocean has been an important route for trade between different regions for a very long time. The Pacific Ocean is the largest and deepest ocean and is also an important area for shipping and trade. Thus, oceans connect different parts of the world both environmentally and economically.
Q9.Choose one environmental issue (deforestation, reef bleaching, or desertification) and explain its causes, impacts, and possible solutions.
Deforestation is an important environmental issue.
Causes: Forests may be cleared for agriculture, development and other human activities.
Impacts: Deforestation destroys the habitats of plants and animals and causes loss of biodiversity. It can also disturb ecosystems and contribute to climate change.
Possible solutions: We should protect forests, plant more trees, use forest resources carefully and prevent unnecessary clearing of forests. Sustainable use of natural resources can help protect forests for future generations. The chapter highlights deforestation as one of the major threats to the Amazon Rainforest.
Q10.Imagine you are a geographer asked to advise a government about protecting one major landscape in your country. Which one would you choose, and why?
I would choose the Himalayas for protection. The Himalayas are extremely important because their snow and glaciers provide freshwater to many rivers. They also influence the climate and provide habitats for many plants and animals.
Protecting the Himalayas would help conserve water resources, biodiversity and natural ecosystems. It would also benefit people who depend on Himalayan rivers and natural resources. Therefore, protecting this landscape is important for both the present and future generations.
Q11.Imagine that someone is funding a group of you for a road trip across two continents. There are differences of opinion on which two they should be. Make a pitch for the ones you would like everyone to go to.
I would choose Asia and Europe for the road trip because these two continents have a great variety of geographical features.
Our route could begin in India, then move towards the Tibetan Plateau, the Gobi Desert, the Ural Mountains, the European Plain and finally the Alps.
During the journey, we would see a high plateau, a vast desert, mountains, fertile plains and another major mountain range. We would also learn how different landforms influence climate, plants, animals, human settlements and economic activities. This would make the trip both educational and exciting.
Quick Revision
Key facts to revise before a test.
- 71% of Earth’s surface is covered by oceans.
- The Pacific Ocean is the largest and deepest ocean.
- The Tibetan Plateau is the highest and largest plateau.
- The Mariana Trench is the deepest ocean trench.
- The Sahara is the largest hot desert.
- Antarctica is the largest and coldest desert.
Frequently Asked Questions
Common doubts students may have about this chapter.
