Question

What causes the apparent motion of the sun across the sky during the day?
The sun's movement around Earth
B The movement of stars
C Earth's rotation
D The moon's orbit

Answer 1

C. Earth's rotation

The apparent motion of the sun across the sky during the day is caused by the rotation of the Earth on its axis. As the Earth rotates from west to east, the sun appears to move from east to west across the sky.