Because of the earth’s the sun and other stars appear to be moving across the sky. rotation gravity axis geocentric model

Because of the Earth's rotation, the sun and other stars appear to be moving across the sky,

Gravity refers to the pull of the Earth on the objects around it. Axis refers to the imaginary line  on which a body rotates. The geocentric model is an old model that states that the Earth is the center of the universe.

The answer then is ROTATION.