Question

The sun's apparent motion across the sky from East to West daily is due to the A) rotation of the sun. B) rotation of the earth. C) orbit of the earth around the sun. D) orbit of the sun around the earth.

Answer 1

B)rotation of earth because we rotate around the sun so when your area faces away from the sun it looks like the sun is setting in your point of view.

Answer 2

B) rotation of the earth.

The sun is relatively fixed. It is the rotation of the Earth that makes it appear as if the Sun is moving from East to West.