The Moon is not solid. The Moon has no gravity. The Moon has almost no atmosphere. The Moon receives almost no solar light.
I gave my students this multiple choice question: Which of the following statements best describes one way that the Moon is different from Earth?

Only one answer is correct among these 4 choices:
- The Moon is not solid.
- The Moon has no gravity.
- The Moon has almost no atmosphere.
- The Moon receives almost no solar light.

Could you tell me which one is correct?

The Moon has almost no atmosphere.