Question

underground limestone caverns can be formed over long periods of time as groundwater that contains carbonic acid seeps through rock layers and slowly dissolves them. what effect of water is demonstrated by this process? chemical weathering physical erosion filling of underground reservoirs movement of sediments

Explanation:

Chemical weathering occurs when water or other substances chemically react with rocks. In this case, carbonic acid in groundwater reacts with limestone (a type of rock), causing it to dissolve. Physical erosion involves the mechanical wearing away of rocks (like through abrasion), which is not the case here. Filling of underground reservoirs and movement of sediments are not related to the dissolution of rocks by a chemical (carbonic acid).

Answer:

chemical weathering