What are the advantages of using CNG and LPG as fuels?
Name the petroleum product used for surfacing of roads.
Describe how coal is formed from dead vegetation. What is this process called?
Fossil fuels are ________, ________ and ________.
Process of separation of different constituents from petroleum is called __________.
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(i) Bitumen : It is used in paints as well as in road surfacing.
(ii) Paraffin Wax : It is used in making ointment, candles, vaseline, etc.
(iii) Lubricating Oil : It is used in the process of lubricating of machine parts.