Rain water runoff from streets contains many pollutants and usually takes a long time to percolate down to the water table. This leaves sufficient time for living organisms to absorb the pollutants and filter the water. Which is one feature that can lead to water reaching aquifers too quickly?

Question

Responses
A clay soilclay soil
B large riverslarge rivers
C karst topographykarst topography
D granite batholiths

Answer 1

The correct response is C: karst topography.

Karst topography is characterized by features such as sinkholes and underground rivers created by the dissolution of soluble rocks like limestone. This geological structure allows water to percolate rapidly through the ground, leading to quicker infiltration and potentially faster movement to aquifers, often bypassing the filtration process that occurs in other types of soils or geological formations.