A cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone.
Carbon dioxide dissolved in rainwater forms carbonic acid.
A cavern is made from carbon dioxide dissolving into carbonic acid.
What chemical creates a cavern?
Options:
A) carbonic acid
B) heating liquids
C) hydrogen and oxygen
D) aqueous solution
E) salt
F) oxygen
G) hydrogen
H) flow of electrons