a liquid changing to a solid a solid changing to a liquid a solid changing to a gas a gas changing to a liquid
I gave my students this multiple choice question: Which of the following describes condensation?

Only one answer is correct among these 4 choices:
- a liquid changing to a solid
- a solid changing to a liquid
- a solid changing to a gas
- a gas changing to a liquid

Could you tell me which one is correct?

a gas changing to a liquid