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) Over exploitation of these resources by the industrialists for short term gains. (ii) Improper management which has lead to access of natural raw materials to certain groups of people which are either influential.