UPSC Geography Atmosphere Question Bank Atmosphere

  • question_answer Normally, the temperature decreases with the increase in height from the Earth's surface because
    1. The atmosphere can be heated upwards only from the Earth's surface.
    2. There is more moisture in the upper atmosphere.
    3. The air is less dense in the upper atmosphere.
    Select the correct answer using the codes given below:

    A)  1 only

    B)  2 and 3 only

    C)  1 and 3 only

    D)  1, 2 and 3

    Correct Answer: C

    Solution :

     The temperature decreases with height in the lowest 10-20 km of the atmosphere (called the troposphere) because most of the solar radiation passes through the atmosphere with little or no effect - that radiation is absorbed by the solid Earth surface and is transferred to the air above the surface by conduction.


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