2. Sample Papers
  3. Railways
  4. General Science & Technology
  5. Pollution of Air and Water

Railways General Science & Technology Pollution of Air and Water Sample Paper Air Pollution Sample Test Paper-20

  • question_answer
    The ozone layer is mainly damaged by

    A)  Methane

    B)  \[C{{O}_{2}}\]

    C)  Sulphur dioxide

    D)  Chloro-fluoro carbons

    Correct Answer: D

    Solution :

    [d] The ozone layer is mainly damaged by chlorofluoro carbons.


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