Multiple choice general knowledge science & technology

Which of these depletes the ozone layer and causes global warming?

  1. Nitrogen Dioxide

  2. CFCs

  3. Ammonia

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chlorofluorocarbons (CFCs) are synthetic chemicals that both deplete the ozone layer and contribute to global warming as potent greenhouse gases. They were used in refrigerants and aerosols before being phased out by the Montreal Protocol. Nitrogen dioxide and ammonia do not have this dual impact.

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