– basically, why is the structure the way it Is. Moreover, what significance can we attribute to this matter of fact? Thanks!
In: Earth Science
As people said before, it’s gravity and also inertia.
Contrary to belief the Earth is not a perfect round sphere, but rather an “Oblate spheroid”.
The earth takes a round shape because of the dense mass at the center which pulled materials towards it in a uniform pull all around.
However, because of the inertia (the resistance of mass to a change in velocity/motion) caused by the earth’s rotation and orbit around the sun, the earth actually starts to bulge from the sides.
The “oblate spheroid” shape is basically a sphere, where the top and bottom are squished in a little causing the sides to bulge out.
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