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UPSC General Studies Solved Paper - General Studies-2012

  • question_answer
    Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the Earth. What prevents them from reaching the surface of the Earth?

    A)  The Earth's magnetic field diverts them towards its poles.

    B)  Ozone layer around the Earth reflects them back to outer space

    C)  Moisture in the upper layers of atmosphere prevents them from reaching the surface of the Earth.

    D)  None of the statements [a], [b] and [c] given above is correct

    Correct Answer: A

    Solution :

    Exp. [a] The Earth's magnetic field channels the charged particles towards the space towards the Poles. Aurora at North Pole is caused by this mechanism only.


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