Question

    Which of the following substances are ozone-depleting?

    Select the correct answer from the code given below.

                    I.         Chlorofluorocarbons

                 II.         Halones

                III.         Carbon tetrachloride

               IV.         Hydrochlorofluorocarbon

    A I, II, and IV only Correct Answer Incorrect Answer
    B II and IV only Correct Answer Incorrect Answer
    C I, III and IV only Correct Answer Incorrect Answer
    D All of the above Correct Answer Incorrect Answer

    Solution

    All substances are ozone-depleting substance.

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