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10th Class Science Our Environment Question Bank Self Test-14

  • question_answer
    The ozone layer is composed of:

    A)  \[O\]

    B)  \[{{O}_{2}}\]

    C)  \[{{O}_{3}}\]

    D)  \[{{O}_{4}}\]

    E)  None of these

    Correct Answer: C

    Solution :


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