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    Question

    What is the estimated height of the stratosphere, a

    layer of the Earth's atmosphere above the troposphere?
    A 29 kilometers Correct Answer Incorrect Answer
    B 32 kilometers Correct Answer Incorrect Answer
    C 50 kilometers Correct Answer Incorrect Answer
    D 55 kilometers Correct Answer Incorrect Answer

    Solution

    The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer. The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high.

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