Why is CNG considered an eco-friendly fuel?
CNG is clean gas. On burning, it does not produce any smoke and leaves no ash. Therefore, CNG is considered eco-friendly fuel.
Where in India is CNG found?
Tripura, Jaisalmer, Offshore of Mumbai and in Krishna Godawari Delta.
What is coal?
Coal is an exhaustible natural fossil fuel which is a tough, porous and black substance. It is almost pure form of carbon.
What is the name of the process of separating the different constituents of petroleum?
It is called refining.