Coal and Petroleum-Sample Questions

1.   Name two man-made substances, two natural and two exhaustible substances.

2.   Name the gas which is formed when coal is heated in the absence of air.

3.   Where was the first oil well drilled?

4.   How many substances are found in coal tar?

5.   Name the places where natural gas is found in India.

6.   What are exhaustible natural resources? Explain with exampes.

7.   What is coal gas? Write its uses.

8.   What is petroleum? What is it called black gold?

9.   Describe the process of formation of coal in the nature.

10.   What is main component of LPG?