Which of the following are disadvantages of withdrawing groundwater?
A)subsidence, or sinking, of land
B)saltwater intrusion into drinking water supplies
C)contamination from deeper wells
D)aquifers that become polluted remaining so for decades or centuries
E)all of these answers

Question

Quizplus · Accepted Answer

All of the choices (A, B, C, and D) are disadvantages of withdrawing groundwater. Subsidence, or sinking, of land can occur when groundwater is removed at a faster rate than it is replenished, leading to structural damage and increased flood risk. Saltwater intrusion can occur when over-pumping of groundwater causes saltwater to move into freshwater aquifers, rendering them unusable for drinking water supplies. Deeper wells can also contain contaminants that can leach into groundwater supplies. And, polluted aquifers can remain contaminated for decades or centuries since groundwater moves slowly, which means that contamination can persist even after the source of pollution is removed.

Which of the Following Are Disadvantages of Withdrawing Groundwater