List of top Science Questions on Coal

Arrange the coal types from lowest to highest rank?
(A) Brown coal
(B) Sub bituminous
(C) Hard coal
(D) Soft coal
Choose the correct answer from the options given below:

The Gondwana coals formed during-

Explain why fossil fuels are exhaustible natural resources.

Describe characteristics and uses of coke.

Tick True/False against the following statements.

1. Fossil fuels can be made in the laboratory.           (T/F)
2. CNG is more polluting fuel than petrol.                  (T/F)
3. Coke is almost pure form of carbon.                       (T/F)
4. Coal tar is a mixture of various substances.          (T/F)
5. Kerosene is not a fossil fuel.                                     (T/F)

Describe how coal is formed from dead vegetation. What is this process called?