Question

What do you mean by fossil fuel? Give two examples of fossil fuel. List effects of pollution caused due to the burning of fossil fuels? [3 MARKS]

Answer 1

Definition : 1 Mark
Example : 1 Mark
Two Effects : 0.5 Mark each

Fossil fuel is a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
Examples : coal and petroleum

Effects:

(i) Carbon dioxide released due to combustion of fossil fuels increases global warming.
(ii) Gases like nitrogen dioxide and sulphur dioxide in the atmosphere react with rainwater and forms acid rain.
(iii) The smoke and gases released due to the burning of fossil fuel causes respiratory disorders in humans.