Which way does the Earth rotate and why?
About Earth rotation.
Is very important for you to know that Earth's rotation is the rotation of the planet Earth around its own axis .
The Earth rotates from the west towards east . As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise.
- WHY? (there is no specific reason for that)
The Earth rotates once in about 24 hours with respect to the sun and once every 23 hours, 56 minutes and 4 seconds with respect to the stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation.
(Thanks for your answer)