Fill in the following blanks with suitable words
(a) Fossil fuels are and
(b) Coal contains mainly
(c) The slow process of conversion of dead vegetation into coal is called
(d) The process of separation of different constituents from petroleum is
(e) The least polluting fuel for vehicle is
(f) The burning of fossil fuel causes air and also causes global

Question

Fill in the following blanks with suitable words
(a)	Fossil fuels are 	and	
(b)	Coal contains mainly 	
(c)	The slow process of conversion of dead vegetation into coal is called	
(d)	The process of separation of different constituents from petroleum is	
(e)	The least polluting fuel for vehicle is 	
(f)	The burning of fossil fuel causes air 	and also causes global

Accepted Answer

Answer

Fossil fuels are coal, petroleum, and natural gas.
Coal contains mainly
The slow process of conversion of dead vegetation into coal is called
The process of separation of different constituents from petroleum is
The least polluting fuel for vehicle is CNG
The burning of fossil fuel causes air pollution and also causes global

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