What is the name of the process of separating the different constituents of petroleum?
It is called refining.
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.
Which process converts dead vegetation into coal?
Carbonisation is the process which convert dead vegetation into coal.