Question

why earth rotates on its exis?​

Answer 1

Answer:Precession is a rotation of Earth's rotation axis, caused primarily by external torques from the gravity of the Sun, Moon and other bodies. The polar motion is primarily due to free core nutation and the Chandler wobble.

Explanation:

Answer 2

Answer:

Explanation:

Earth movement along its nearly circular orbit while it is rotating one around its axis requires that earth rotate slightly more than once relative to fixed stars before the mean sun can pass overhead again even though it's rotate only once relative to mean sun