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 callled _ .

(d) The process of separation of different constituents from petroleum is called _ .

(e) The least polluting fuel for vehicles is _ .

(f) The burning of fossil fuels causes air _ and also leads to global ___ .

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Solution

a) Fossil fuels are coal, petroleum and natural gas.
b) Coal contains mainly carbon
c)The slow process of conversion of dead vegetation into coal is callled carbonization.
d) Process of separation of different constituents from petroleum is called refining.
e) The least polluting fuel for vehicles is compressed natural gas.
f) The burning of fossil fuels causes air pollution and also leads to global warming.

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Similar questions

Fill in the banks.

(a) Fossil fuels are ________, ________ and _________.

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

Fill in the blanks.

(a) The slow process of conversion of dead vegetation into coal is called__________.

(b) Coal and petroleum are formed from the dead remains of organisms and are known as __________.

(d) During the processing of coal to get coke, coal tar and __________ are also obtained.

(e) The process of separating the various constituents of petroleum is known as __________.

(f) Excessive burning of fossil fuels is a major cause of __________.

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