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1 October, 09:33

Which statement best explains why Earth is not a perfect sphere?

Earth revolves too quickly around the Sun

Earth's spin on its axis causes the equator to bulge

The circumference of the Earth is greater at its poles

The gravity of the moon changes Earth's shape

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Answers (2)
  1. 1 October, 09:36
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    Earth's spin on its axis causes the equator to bulge
  2. 1 October, 09:54
    0
    Earth's spin on its axis causes the equator to bulge

    Explanation:

    The Earth is not a perfect sphere but an oblate ellipsoid. The force that holds a planet is gravity. The Earth is rotating on its axis at a speed of 460 m/s at the equator. Due to this reason there is a build up of centrifugal force on the Earth which causes it to expand giving it a bulge.

    The Sun and the Moon's gravity causes waves on the surface of large water bodies.
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