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AMU Medical AMU Solved Paper-1997

  • question_answer
    The long gap of 300 million years between the origin of earth and of life on it was due to lack of

    A)  oxygen           

    B)  water

    C)  DNA            

    D)  suitable temperature.

    Correct Answer: D

    Solution :

    : Earlier earths surface was too hot (about\[1000{}^\circ C\]). At this temperature life was not possible and water molecules existed in vapour form. It took a long time to cool down the earth.


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