Question

What do you meant by air pollutants? [4 marks]

Answer 1

• The substances which contaminate the air are called air pollutants. [1 mark]
• Sometimes, such substances may come from natural sources like smoke and dust arising from forest fires or volcanic eruptions. [1 mark]
• Pollutants are also added to the atmosphere by certain human activities. [1 mark]
• Man- made sources of air pollutants are factories, power plants, automobile exhausts and burning of firewood and dung cakes. [1 mark]