Which of the following are the causes of air pollution?
Deforestation.
Increase in the number of industries in residential areas.
Volcanic eruptions.
Use of fertilisers and insecticides.
Some of the other causes of air pollution include:
1. Increase in human population.
2. Emission of harmful gases from vehicles.
3. Burning of fossil fuels.
4. Usage of chemical weapons like atomic bombs in wars.