Which of the following is the best indication that limestone caves could be present at depth?
A) springs
B) cliffs and overhangs along rivers
C) large quartz crystals laying on the surface
D) gently sloping hills
E) limestone pillars and sinkholes

Question

Quizplus · Accepted Answer

Limestone pillars and sinkholes are direct indicators of karst landscapes, which are formed from the dissolution of soluble rocks, including limestone. This process can lead to the formation of caves, making E the best indication of potential limestone caves at depth.

Which of the Following Is the Best Indication That Limestone