Answer :
The agent of erosion that can create a limestone cave is acidic water. The correct option is C.
What is limestone?
Limestone is a type of calcareous sedimentary rock that is very common. Calcite and aragonite, 2 distinct crystal types of calcium carbonate, make up the majority of it (CaCO3).
Limestone is formed whenever these minerals form insoluble out of dissolved calcium-rich water.
Thus, the correct option is C. Acidic water
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