erosion. deposition. physical weathering. chemical weathering.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Today's limestone caverns were once solid rock. Acidic rainwater seeping through the rock over hundreds of years dissolved part of the rock, forming caverns. This is an example of
Possibilities:
- erosion.
- deposition.
- physical weathering.
- chemical weathering.

chemical weathering.