Earth is tilted on the axis. The Moon rises and sets. The Moon orbits Earth. Earth orbits the Sun.
I gave my students this multiple choice question: The phases of the Moon are daily changes in the appearance of the Moon. One reason Moon phases occur is because the Moon reflects sunlight. Which is another reason that the phases of the Moon occur?

Only one answer is correct among these 4 choices:
- Earth is tilted on the axis.
- The Moon rises and sets.
- The Moon orbits Earth.
- Earth orbits the Sun.

Could you tell me which one is correct?

The Moon orbits Earth.