Fill in the banks. (a) Fossil fuels are ________, ________and _________. (b) Process of separation of different constituents from
Fill in the banks. (a) Fossil fuels are ________, ________and _________.
(b) Process of separation of different constituents from petroleum is called _________.
(c) Least polluting fuel for vehicles is __________.
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(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 vehicles is CNG.
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