Coal and Petroleum Question Answers: NCERT Class 8 Science

Welcome to the Chapter 5 - Coal and Petroleum, Class 8 Science - NCERT Solutions page. Here, we provide detailed question answers for Chapter 5 - Coal and Petroleum.The page is designed to help students gain a thorough understanding of the concepts related to natural resources, their classification, and sustainable development.

Our solutions explain each answer in a simple and comprehensive way, making it easier for students to grasp key topics and excel in their exams. By going through these Coal and Petroleum question answers, you can strengthen your foundation and improve your performance in Class 8 Science. Whether you're revising or preparing for tests, this chapter-wise guide will serve as an invaluable resource.

  • The resources which we get from nature are called as natural resources.
  • Natural resources are of two types: Inexhaustible natural resources and exhaustible natural resources.
  • The resources which are present in the unlimited quantity in nature are called as inexhaustible natural resources. For example: sunlight.
  • The resources which are present in the limited quantity in nature are known as exhaustible natural resources. For example: coal, petroleum.
  • Fossil fuel may be defined as the fuels which are formed from the dead vegetation and dead remaining of living organisms. They are present in limited quantity.
  • Coke is the pure form of carbon, it is used in the manufacture of steel.
  • Coal is as hard as stone, it is used to cook food.
  • A thick, black liquid with unpleasant smell is called as coal tar.
  • Petrol and diesel are obtained from the natural resources are called as petroleum.
  • The process of separating the various constituents of petroleum is known as refinery.
  • CNG and LPG are the clean fuels which does not produce and harmful gas behind.
  • We should use the inexhaustible natural resources.
  • We should use the exhaustible natural resources carefully because they are limited in nature.

Download PDF - Chapter 5 Coal and Petroleum - Class 8 Science

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Exercise 1 ( Page No. : 63 )

Key Features of NCERT Class 8 Science Chapter 'Coal and Petroleum' question answers :

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