CBSE Class 8 Science Chapter 3 Coal And Petroleum Very Short Answer Questions
Question 1. Give two natural resources. Why are these called natural resources?
Answer: Air and water are natural resources because they are obtained from nature.
Question 2. We will use all our natural resources forever. Is it possible?
Answer: No, we cannot use all our natural resources forever. Some natural resources are going to be exhausted.
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Question 3. Can air, water, and soil be exhausted by human activities?
Answer: No, these will not be exhausted by human activities.
Question 4. Coal, petroleum, and natural gas are called fossil fuels. Why?
Answer: Coal, petroleum, and natural gas are called fossil fuels because they are formed by the decomposition of the remains of prehistoric plants and animals (fossils) buried under the Earth long ago.
Question 5. What do you mean by carbonisation?
Answer: The slow process of conversion of dead vegetation into coal is called carbonisation.
Question 6. Name two fuels obtained from petroleum that can be used as domestic fuels.
Answer: Petrol, liquefied petroleum gas (LPG), as obtained from petroleum and can be used as a domestic fuel.
Question 7. Where is coal found in India?
Answer: In India, coal is found mainly in Jharkhand, West Bengal, Odisha, and Madhya Pradesh.
Question 8. How can you define Coke?
Answer: Coke is a tough, porous, and black substance and an almost pure form of carbon.