The Great Lakes Water Quality Agreement between the U.S.and Canada improved water quality by ____.
A) increasing nitrogen inputs
B) upgrading sewage treatment plants
C) banning invasive species
D) closing beaches
E) banning commercial fishing

Question

Quizplus · Accepted Answer

Upgrading sewage treatment plants was a significant measure under the Great Lakes Water Quality Agreement between the U.S. and Canada, aimed at reducing pollution and improving water quality in the Great Lakes.

The Great Lakes Water Quality Agreement Between the U