Multiple choice

Which of the following is/are the sources of air pollution? a. Smoke emitted from homes by the burning of fuels. b. Exhaust gases emitted by motor vehicles. c. Smoke emitted by factories and thermal power plants.

  1. Only a

  2. Only b

  3. a and c

  4. b and c

  5. a, b and c
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option as all of the above cause air pollution.

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