Multiple Choice
According to the Global Water Policy Project, most cities in developing countries discharge ____ of their untreated sewage directly into rivers, streams, and lakes whose waters are then used for human consumption.
A) 10─20%
B) 20─30%
C) 40─50%
D) 50─60%
E) 80─90%
Correct Answer:
Verified
Correct Answer:
Verified
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