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    Question

    The ozone layer thickness is measured

    in:
    A Decibel Correct Answer Incorrect Answer
    B Dobson U Correct Answer Incorrect Answer
    C ppm Correct Answer Incorrect Answer
    D Becquerel Correct Answer Incorrect Answer

    Solution

    The thickness of the ozone layer is measured in Dobson Units (DU). A Dobson Unit is a measure of the total amount of ozone in a column of air stretching from the Earth's surface to the top of the atmosphere. One Dobson Unit represents a layer of ozone that would be 0.01 millimeters thick under standard temperature and pressure conditions.

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