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  3. BHU PMT

BHU PMT BHU PMT (Screening) Solved Paper-2006

  • question_answer
    If there were no atmosphere, the average temperature on the surface of the earth would be:

    A)  lower                                  

    B)  higher

    C)  same as now   

    D) \[0{}^\circ C\]

    Correct Answer: A

    Solution :

                     Due to absence of atmosphere, there would have been no greenhouse effect, i.e., no back-scattering of infrared radiations from atmospheric particles, which are emitted by earth. Due to which the temperature of earth would have decreased.


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