layering the rocks crystallizing the rocks folding the layers of the rocks rounding the shapes of the rocks
I gave my students this multiple choice question: Constructive forces build a new mountain range. How will weathering and erosion change the features of the mountain range over time?

Only one answer is correct among these 4 choices:
- layering the rocks
- crystallizing the rocks
- folding the layers of the rocks
- rounding the shapes of the rocks

Could you tell me which one is correct?

rounding the shapes of the rocks