Everything liquid or pretty elastic takes a round from in space and it is proven by ppl who travel space

There is such a thing called gravity, heavier things always pwn smaller things and since the core of our earth is very heavy it just draws lightier stuff with almost the same power from every direction
And that's why the form of the earth is very close to that of a perfect round
But why it is not a perfect round because earth moves with a speed that is even higher than that of a sound and because erath has different levels which consist of different materials.