Take pizza dough and start spinning in the air, it becomes flatter and flatter. The side of the ball pushes out from the center and it becomes flat at the bottom.

Wondering ???

just imagine what happens to earth when it’s rotating on its axis ???

Isaac Newton first proposed that Earth was not perfectly round. He suggested that it was an oblate spheroid – a sphere that is squashed at its poles and swollen at the equator. The distance from Earth’s center to sea level is roughly 21 km (13 miles ) greater at the equator than at the poles.