Question

A depression in the ground due to a cave collapse or acidic water dissolution of limestone is called a

A. sinkhole.
B. stalactite.
C. stalagmite.
D. cave.

Answer 1

When a cave collapses, it’s called a sinkhole. It’s given this name because the ground looks to be sinking into a hole. Sinkholes are formed when acidic water dissolves limestone deposits, which eventually become too large to support the ground above.