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Question

All are particulate pollutant except


A

Soot

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B

Dust

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C

Smoke

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D

Ozone

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Solution

The correct option is D

Ozone


  • Pollutants: Agents that bring about such an undesirable change are called as pollutants.
  • Particulate pollutants: Particulate pollutants are solid particles in the air that cause pollution.

Explanation for incorrect option:

  • Out of the given options, Soot, dust, and smoke are the particulate pollutants as all these contain solid pollutant particles.

Explanation for correct option:

  • ozone is a gaseous pollutant.
  • Ozone (O3) is found in the upper part of the atmosphere called the stratosphere, and it acts as a shield absorbing harmful ultraviolet radiation from the sun.
  • Ground-level ozone acts as a pollutant and is harmful to human health and the environment.

Hence, the correct option is (D).


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