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Question

When air is contaminated by ________ substances which have a ________ effect on both the ________ and ________, it is referred to as ________. (air pollution, harmful, living, unwanted, non-living, pollutants).


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Solution

Air Pollution:

  • “The presence of harmful chemicals in the air that makes it unfit for humans, plants, and animals is called air pollution.”
  • The effect of air pollution is observed on both living and non-living substances.
  • “When air is contaminated by unwanted substances which have a harmful effect on both the living and the non-living, it is referred to as air pollution.”
  • The substances which contaminate the air are called air pollutants.

Causes of air pollution:

  • Vehicles
  • Industries and factories
  • Burning of fuels, wood, etc.

Hence, when air is contaminated by unwanted substances which have a harmful effect on both the living and non-living, it is referred to as air pollution.


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