1. Resources present in unlimited quantity in nature and are not likely to be exhausted by human activities are called:

2. Coal, Petroleum and natural gas are examples of:

3. Naphthalene balls used to repel moth and insect is derived from:

4. CNG is the abbreviated form of:

5. The slow process of conversion of dead vegetation into coal is called:

6. In India petroleum deposit was first found in the state of:

7. Use of CNG in automobile is better than petrol because it is:

8. To reduce fuel consumption in automobile one should:

9. Black gold is actually:

10. The earth’s temperature is increasing due to Global warming which is due to: