Question

Which of the following statements is TRUE regarding the biochemical oxygen demand (BOD) in a lake?

Choose one:
A. A low BOD is associated with fertilizer runoff.
B. A high BOD is associated with low algae growth.
C. A high BOD is associated with a high dissolved oxygen content.
D. A low BOD is associated with a high dissolved oxygen content.

Answer 1

A low BOD is associated with a high dissolved oxygen content in a lake.

Step-by-step explanation:

The statement that is TRUE regarding the biochemical oxygen demand (BOD) in a lake is D. A low BOD is associated with a high dissolved oxygen content. BOD refers to the amount of oxygen used by aerobic bacteria to decompose organic matter in water. A low BOD indicates that there is less organic matter present, resulting in a higher dissolved oxygen content. This is important for the survival of oxygen-dependent organisms such as fish and other aquatic life.