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

Explanation:

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(a) Fossil fuels are Natural Gas, Coal and Petroleum.

(b) Process of separation of different constituents from petroleum is called refining.

(c) Least polluting fuel for vehicle is CNG.

Answer 2

Answer:

a) Fossil fuels are coal , petroleum and natural gas.

b)  Process of separation of different constituents from petroleum is called refining

c)  Least polluting fuel for vehicle is CNG

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