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  1. The Total surface area of earth is
    1. 510 million sq. km
    2. 610 million sq. km
    3. 710 million sq .km
    4. 810 million sq. km
Correct Option: A

NA


Comments

  1. SANTOSH KUMAR

    June 21, 2018 Reply

    Radius of the Earth is around 6,400 km. Total surface area of a sphere is 4*π*R^2
    Hence, total surface area of the Earth is (4x3.14x6400x6400) ~ 510 million sq. km

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