Which land form results when carbonic acid in groundwater seeps through rock and dissolves limestone?
A B C D
valleys ravines caverns mountains
Question: Which land form results when carbonic acid in groundwater seeps through rock and dissolves limestone?
(A) valleys
(B) ravines
(C) caverns
(D) mountains

Answer: (C) caverns
Answer: (D) mountains
Question: Which land form results when carbonic acid in groundwater seeps through rock and dissolves limestone?
(A) valleys
(B) ravines
(C) caverns
(D) mountains
Answer: (C) caverns