How does BOD relate to dissolved oxygen and result in fish kills?
A)BOD oxygen is a form that fish do not take up through their gills, so fish die when BOD is high.
B)BODs are organisms that produce toxins that kill fish, dissolved oxygen increases when there are fewer fish using oxygen.
C)BOD is the amount of oxygen used by microorganisms, when it is high there is not enough oxygen left for fish and they die.
D)Fish cannot live in BOD sewage and they die, oxygen decreases with fewer fish present

Question

Quizplus · Accepted Answer

BOD (Biochemical Oxygen Demand) measures the amount of oxygen that microorganisms require to decompose organic matter in water. When BOD levels are high, it indicates that a large amount of organic pollution is present, which requires a lot of oxygen for decomposition. This process depletes the dissolved oxygen in the water, leaving insufficient oxygen for fish and other aquatic life, leading to fish kills.

How Does BOD Relate to Dissolved Oxygen and Result in Fish