Question

Fill in the blanks.
(a) Fossil fuels are___________,_____________
and______________
(b) Process of separation of different constituents from petroleum is
called______________
(c) Least polluting fuel for vehicle is____________​

Answer 1

Answer:

1. Coal, Petroleum and Natural gas

2. Refining

3. CNG. (compressed natural gas)

hope it will be helpful

Answer 2

a) Coal , Petroleum and Natural gases.

b) Petroleum refining

c) CNG

Explanation:

Please like and mark answer as brainliest