B. Fill in the blanks.
1. The liquid fossil fuel is .....
2. Heavy motor vehicles like trucks and tractors run on......
3. Coke is obtained by.........
of coal.
4. Petroleum and natural gas are ... ...... resources.
5..............is almost the pure form of carbon.
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Answer:
1 petrol and diesel
2 fossil fuel
3 burning of wood
4 non renewable
5 diamond
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