Question: A woman visits the same beach year after year, and begins to notice a change to a large wall of stone. Where the water touches the rock, she notices that the rock shows signs of being dissolved. After two year, there is an indent in the rock. After fifty years, the woman discovers that the rock
Choices:
text: is now an underground chamber
label: A
text: is now solid gold
label: B
text: is now about to explode
label: C
text: is now much bigger
label: D
Answer: A
Fact: a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone