rivers flooding along a coastal plain. erosion and weathering. earthquakes and waves. rocks melted underground by lava.
I gave my students this multiple choice question: The tops of some mountains are sharp and pointed, while the tops of others are smooth and rounded. This difference was most likely caused by

Only one answer is correct among these 4 choices:
- rivers flooding along a coastal plain.
- erosion and weathering.
- earthquakes and waves.
- rocks melted underground by lava.

Could you tell me which one is correct?

erosion and weathering.