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Which of the following gases is primarily responsible for the depletion of the ozone layer?

medium Q4 of 15
General Science - Physics (Basics)
Which of the following gases is primarily responsible for the depletion of the ozone layer?
AChlorofluorocarbons (CFCs)
BCarbon dioxide
CMethane
DNitrogen
Step-by-Step Solution
  1. Step 1: Understand ozone layer depletion

    The ozone layer protects Earth from harmful ultraviolet rays; certain gases cause its depletion.
  2. Step 2: Identify harmful gases

    Chlorofluorocarbons (CFCs) released from refrigerants and aerosols break down ozone molecules. Carbon dioxide and methane contribute to global warming but not ozone depletion.
  3. Final Answer:

    Chlorofluorocarbons (CFCs) → Option A
  4. Quick Check:

    Ozone depletion gas = Chlorofluorocarbons ✅
Quick Trick: CFCs damage ozone, unlike CO2 which causes warming.
Common Mistakes:
  • Confusing greenhouse gases with ozone-depleting gases.
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