Question

What are the main causes of smoke in air?

Answer 1

Although air contains a very small amount of dust particles and smoke even this small amount is sufficient to cause pollution. Smoke contains many harmful gases as it is produced by the burning of fuel from vehicles and industries.

Causes of smoke

• The burning of fuels such as wood and coal produces carbon dioxide.
• Burning of plastic, fireworks, and other wastes that release toxic gases.
• Emission of smoke and other harmful gases from motor vehicles, factories, refineries, and power plants.
• Smoking cigarettes.