BOD

Multiple Choice

BOD:

A) is a measure of the oxygen demand of microorganisms in the water as they break down organic material.
B) which is too high will result in a loss of many species of fish, such as trout, which require a more significant quantity of dissolved oxygen than so-called "garbage" fish or bottom-feeders such as shad.
C) is one measure of how polluted a body of water is.
D) all of the above.