the lack of water the presence of igneous rock the very thin atmosphere the lack of magnetic poles
I gave my students this multiple choice question: The Moon lacks weather and climate changes like those on Earth. What causes the lack of weather on the Moon?

Only one answer is correct among these 4 choices:
- the lack of water
- the presence of igneous rock
- the very thin atmosphere
- the lack of magnetic poles

Could you tell me which one is correct?

the very thin atmosphere