transforming the rock into igneous rock. chemically changing the rock. gradually breaking down the rock into smaller pieces. leaving behind sedimentary particles from evaporated solutions.
I gave my students this multiple choice question: The freezing and thawing action of water affects a rock by

Only one answer is correct among these 4 choices:
- transforming the rock into igneous rock.
- chemically changing the rock.
- gradually breaking down the rock into smaller pieces.
- leaving behind sedimentary particles from evaporated solutions.

Could you tell me which one is correct?

gradually breaking down the rock into smaller pieces.