If you go out at exactly 9 P.M.each evening over the course of 1 month,the position of a given star will move westward by tens of degrees.What causes this motion?
A) Earth's rotation on its axis
B) the revolution of Earth around the Sun
C) the revolution of the Moon around Earth
D) the revolution of the Sun around Earth

Question

Quizplus · Accepted Answer

This westward motion of a star over the course of a month is due to Earth's revolution around the Sun. As Earth orbits the Sun, the night sky changes slightly each night, causing stars to appear to move westward.

If You Go Out at Exactly 9 P