The bulging of earth at the equator and flattening at the poles is due to
A
Centripetal force
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B
Centrifugal force
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C
Gravitational force
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D
Electrostatic force
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Solution
The correct option is B Centrifugal force The bulging of equator and flattening at poles is due to rotation of earth. The rotation of earth creates a centrifugal force which is pseudo effect counter balancing the inward acting centripetal force. This pseudo effect pushes the earth outward, bugling from earth, and flattening at poles.