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  1. A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?
    1. The presence of ozone causes the reflection of radio waves to Earth.
    2. Radio waves have a very long wavelength.
    Which of the statements given above is fare correct?

  2. A.

     1 only

    B.

     2 only

    C.

     Both 1and 2

    D.

     Neither 1 nor 2

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    Answer : Option D

    Explanation :

    A layer in the Earth's atmosphere called Ionosphere facilitates radio communication.


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