Question

What is air pollution? Mention a few common causes of air pollution.

Answer 1

Air pollution occurs when harmful substances including particulates and chemicals are introduced into Earth's atmosphere. It may cause diseases, allergies or death of humans; it may also cause harm to other living organisms such as animals and food crops, and may damage the natural or built environment. [2 marks]

Volcanic eruption, crop pollination and human activities like burning of coal, wood, diesel oil, petrol, kerosene, etc. are the major causes of air pollution. [1 mark]