Sinkholes can form .
A) in humid regions underlain by carbonates, salts, or gypsum
B) in any calcium bearing bedrock
C) only in limestones
D) only in high elevation areas with sufficient gradient to carry away dissolved materials

Question

Quizplus · Accepted Answer

Sinkholes commonly form in humid regions underlain by soluble rocks such as carbonates (e.g., limestone), salts, or gypsum. These materials can dissolve in the presence of water, especially acidic rainwater, leading to the formation of underground voids. When the land surface collapses into these voids, a sinkhole is formed.

Sinkholes Can Form