Question

Explain the causes of air pollution.

Answer 1

Air pollution is primarily caused by the emission of harmful gases and particulate particles into the atmosphere by human activities and natural processes. The major causes include:

1. Industrial Emissions: Factories and power facilities release large amounts of sulphur dioxide, carbon monoxide, and smoke.
2. Automobile Exhaust: The burning of fossil fuels in vehicles generates nitrogen oxides and lead, especially in urban areas.
3. Agriculture: The usage of chemical fertilisers, as well as the habit of burning crop residue (stubble burning), all contribute considerably to smog.
4. Domestic Factors: In rural places, cooking with firewood, coal, or kerosene produces harmful gases.
5. Mining and Construction: These activities generate vast volumes of dust and suspended particle matter.