Why are springs in karst landscapes particularly vulnerable to contamination?
A) Natural sinkholes are commonly used as landfills.
B) Toxic metals dissolved out of limestone become concentrated in these springs.
C) Surface pollutants can easily enter and move through underground drainage systems.
D) Deep pumping of groundwater for agriculture draws pollutants from fertilizer into springs.
E) Spring water comes from stagnant underground pools where pollutants concentrate.

Question

Quizplus · Accepted Answer

Karst landscapes are characterized by sinkholes and underground drainage systems, which make springs particularly vulnerable to contamination from surface pollutants. Pollutants can easily enter and move through the underground channels and contaminate the water in the springs.

Why Are Springs in Karst Landscapes Particularly Vulnerable to Contamination