How long does it take for pollutants to be flushed out of the Great Lakes into the ocean?
A) 5 years
B) 20 years
C) 50 years
D) 100 years
E) 1000 years

Question

Quizplus · Accepted Answer

The flushing time for pollutants to be removed from the Great Lakes into the ocean is approximately 100 years. This is due to the slow rate of water exchange between the Great Lakes and the Atlantic Ocean through the St. Lawrence River.

How Long Does It Take for Pollutants to Be Flushed