Question

why Earth revolv around its own axis​

Answer 1

Answer:

Explanation:

At the centre of the earth is a huge ball of liquid iron. It is always spinning and causes the earth to spin with it. Every few million/billion years the iron core shifts its direction of spin. When it does, the entire eco-system could be wiped out (if it's a big enough shift). Mega tsunamis, total change of weather systems, etc. Antartica could end up in the tropics.

Answer 2

Answer:

Since gravity pulls inward from all directions equally, the amorphous clump, if massive enough, will eventually become a round planet. Inertia then keeps that planet spinning on its axis unless something occurs to disturb it. "The Earth keeps spinning because it was born spinning," Luhman said

Explanation: