has a thick atmosphere. revolves around a planet. has liquid water on the surface. is composed entirely of sedimentary rock.
I gave my students this multiple choice question: One difference between the Moon and Earth is that the Moon

Only one answer is correct among these 4 choices:
- has a thick atmosphere.
- revolves around a planet.
- has liquid water on the surface.
- is composed entirely of sedimentary rock.

Could you tell me which one is correct?

revolves around a planet.