Multiple choice

CFC is NOT emitted from

  1. a refrigerator

  2. a fire extinguisher

  3. an air conditioner

  4. a DC motor

  5. an aerosol spray

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Refrigerator, fire extinguisher and air conditioner emit CFCs in large quantities whereas DC motors do not emit CFCs.

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