Question

What is the explains the shape of the earth ?

Answer 1

So the shape of the Earth is round.

Step-by-step explanation:

You know how when you look straight ahead out on the beach? The horizon is a line, right? Well, if the Earth were flat, that line would not exist. Instead, you would see a lot more of the ocean. Try it now and see what I mean. There is a limit to how far you can see, that is because if you stand on a sphere, and someone were to behind standing on the side of it, you wouldn't see them because you would be looking ahead, not down.

Answer 2

Since the Earth is flattened at the poles and bulges at the Equator, geodesy represents the figure of the Earth as an oblate spheroid. The oblate spheroid, or oblate ellipsoid, is an ellipsoid of revolution obtained by rotating an ellipse about its shorter axis.