Multiple choice

Which of the following is utilised in reducing air pollution by removing dust, soot and fly-ash particles from the smoke coming out of chimneys of factories?

  1. Gravitational force

  2. Magnetic force

  3. Muscular force

  4. Electrostatic force

  5. Frictional force
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. Electrostatic force is utilised in reducing air pollution by removing dust, soot and fly-ash particles from the smoke coming out of chimneys of factories.

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