Groundwater
A) is a major source of drinking water.
B) can be contaminated when wells are dug in areas naturally rich in arsenic.
C) contamination is not fully studied worldwide because aquifers can be expensive to locate, track and test.
D) can be contaminated by salt water intrusion.
E) is described by all of these answers.

Question

Quizplus · Accepted Answer

All of the given answers are true regarding groundwater, making E the best choice. Groundwater is a major source of drinking water for many around the world. It can be naturally contaminated with substances such as arsenic, which can cause health problems. Contamination of groundwater is not fully understood worldwide because it can be expensive to locate, track and test aquifers. Additionally, coastal areas can experience saltwater intrusion, contaminating freshwater resources.