Biochemical oxygen demand is a measure of the
A) amount of organic matter present in a water sample.
B) number of bacteria present in a water sample.
C) amount of nitrogen in a water sample.
D) amount of oxygen present in a water sample.
E) amount of undissolved solid matter present in a water sample.

Question

Quizplus · Accepted Answer

Biochemical oxygen demand (BOD) measures the amount of oxygen required by aerobic microorganisms to decompose organic matter in water, indicating the level of organic pollution.

Biochemical Oxygen Demand Is a Measure of the