Question

Why does the moon appear to move across the sky at night?

a) It travels around the earth every day.
b) All objects are moving in space.
c) The earth rotates on its axis.

Answer 1

The moon appears to move across the sky at night because the Earth rotates on its axis.

Step-by-step explanation:

The moon appears to move across the sky at night because the Earth rotates on its axis. As the Earth spins, it gives the illusion that celestial objects, like the moon, are moving across the sky. This rotation causes the moon to rise in the east and set in the west each night.

Additionally, the moon also has its own independent motion. It completes a trip around the sky in about 1 month, moving about 12° each day. This apparent motion is due to the moon's orbit around the Earth.

So, the answer is c) The Earth rotates on its axis.