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How do fossil fuels cause air pollution ? (CCE 2012)
Fossil fuels (coal, petroleum) are burnt to obtain energy.
1. Suspended particles
2. Sulphur oxides
3. Nitrogen oxides
4. Carbon monoxide
5. Vapours of hydrocarbons.
All these are air pollutants. Hydrocarbons are a source of cancer. They also damage internal organs. Alongwith nitrogen oxides, they produce ozone and smog. Sulphur and nitrogen oxides give rise to acid rain. They are also irritants and damage eyes and nasal tract.