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  1. The maen radius of the earth is-
    1. 3200 km
    2. 6400 km
    3. 9600 km
    4. 12800 km
Correct Option: B

NA


Comments


  1. SANTOSH KUMAR

    June 21, 2018 Reply

    The mean radius of the Earth is about 6,371 km ~ 6400 km.


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