Question

What is air pollution? What are the main sources of air pollution?

Answer 1

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Pollution caused by release of harmful gases into the atmosphere is known as air pollution.

Main sources of Air Pollution:-

1. Gas released by Factories
2. Smoke emitted from vehicles

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Answer 2

Air pollution:

• Air pollution is used to define contamination of air caused by gaseous pollutants.
• The pollutants sometimes have chemical reaction with air and produce harmful constituents.
• These constituents have harmful biological effect on both plants and animals.
• Some of the effects are depletion of ozone layer and global warming.

Sources of air pollution:

There are four types of sources of air pollution which includes mobile, area, natural and stationary sources.

• Mobile sources:

Car, bus, train, ships and so on.

• Area sources:

Agricultural resources, cities and so on.

• Natural sources:

Volcanoes, wildfires and so on.

• Stationary sources:

Factories, oil plants, power plants and so on.