Explanation:
because Earth itself isn't a sphere. It is closer to an ellipsoid, being flattened at the poles by the centrifugal force of its own rotation. But the planet isn't an ellipsoid either, because of topography.
Answer:
Explanation:
THIS IS BECAUSE OF THE THREE FORCES CENTRIPETAL ,CENTRIFUGAL AND GRAVITATIONAL FORCE.
GRAVITATION FORCE PULL THINGS TO THE CENTER OF THE EARTH WHILE THE CENTRIFUGAL MAKES IT TO MOVE IN A CICULAR MOTION GIVING IT THE GEOID SHAPE
HOPE IT WILL HELP
