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  • Pollution of Air and Water
  • Which of the following causes hole in ozone umbrella?
Multiple choice

Which of the following causes hole in ozone umbrella?

  1. Methane

  2. Oxygen

  3. Carbon monoxide

  4. Argon

  5. CFCs

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

CFCs cause hole in ozone umbrella.

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