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• Q.1: What are the advantages of using CNG and LPG as fuels? Q.2 : Name the petroleum product used for surfacing of roads.
• Q.3: Describe how coal is formed from dead vegetation. What is this process called? Q.4: By way of Fill in the blanks, name of three fossil fuels etc.
• Q.5. Tick True/False against the following statements. a) Fossil fuels can be made in the laboratory. (b) CNG is more polluting fuel than petrol. etc.
• Q.6 Explain why fossil fuels are exhaustible natural resources. Q.7 Describe characteristics and uses of coke.
• Q.8. Explain the process of formation of petroleum.
• Q. 9. The following Table shows the total power shortage in India from 1991–1997. Show the data in the form of a graph.
• IMPORTANT QUESTIONS: Q. 1. Sunlight and air are inexhaustible natural resources. Comment. Q.2. Write two important uses of coke.
• Q.3. What steps would you suggest for the judicious use of fossil fuels? Q.4. Explain about coal tar. Q.5 Where do we get coal and how is it formed?
• Q. 6. Define the term ‘petrochemicals’. Q.7. Name two products that you obtain from the destructive distillation of coal.
• Q.8. Can forests help reduce the pollution caused by burning of fossil fuels? How? Q.9. None of the fuels is clean fuel. Comment.
• Q. 10. Name some renewable sources of energy. Q.11. Give some examples of fossil fuels.
• Q. 12 Name the elements present in coal. Q. 13 Which are the two main techniques of mining? Q.14 List four varieties of coal.
• Q.15. Name the process of conversion of wood into coal. Q.16. Mention the temperature at which destructive distillation is done.
• Q. 17. When the crude oil is referred to be ‘sweet’?
• Q.18 Name the country which is the leading producer of petroleum. Q.19 Name the gas that occurs over petroleum in reservoirs deep inside the earth.
• Q.20 Expand PCRA. Q.21 Name two fractions of petroleum which are used as fuel.
• Q.22 What kind of pollution is caused by the burning of fossil fuels? Q.23 Write the full form of LPG.
• Q.24 Which gas is produced when coal is burnt in air? Q.25 Can we use all our natural resources forever?
• Q.26 What is the purest form of carbon? Q.27 What is fuel?
• Q.28. What other source of energy may be used to drive vehicles?
• Q.29 Name three constituents of petroleum and write their uses also. Q.30 Can forests help reduce the pollution caused by burning of fossil fuels? How?
• Q. 31 Radhey prefers to go to school by pooling car. What are the benefits of carpooling? (b) Which mean of transport do you think is best for short distances?
• 29 IMPORTANT FILL IN THE BLANKS
• 31 IMPORTANT MCQs