Oxygen sag curves occur when ____.
A) water levels are high
B) bacteria break down biodegradable wastes
C) when water flows quickly
D) when water is cool or cold
E) salt and fresh water mix

Question

Quizplus · Accepted Answer

Oxygen sag curves occur when bacteria break down biodegradable wastes in water. This process consumes dissolved oxygen, which can lead to lower oxygen levels in the water, affecting aquatic life.

Oxygen Sag Curves Occur When ____