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 __________.
1 of 21
Harmful effects of burning fossil fuels are :
(i) Burning of fossil fuels burn with smoky flame which cause in air pollution.
(ii) They also cause global warming because they produce green house gas carbon dioxide gas on burning.