Limestone dissolution in a karst setting is due largely to the generation of this acid.
A) nitric acid
B) humic acid
C) carbonic acid
D) perchloric acid
E) bicarbonate acid

Question

Quizplus · Accepted Answer

Limestone is primarily composed of calcium carbonate, which is soluble in carbonic acid. Carbonic acid is generated through the reaction of carbon dioxide in rainwater and the limestone. This leads to the dissolution of the limestone over time, forming solution cavities and sinkholes commonly seen in karst topography. Nitric acid, humic acid, and perchloric acid are not commonly found in natural systems, while bicarbonate acid is not a recognized type of acid.

Limestone Dissolution in a Karst Setting Is Due Largely to the Generation