To decrease the likelihood of cultural eutrophication from the effluent released from a water treatment facility, sewage plants may include a
a. secondary treatment, removing nitrogen and phosphorous.
b. secondary treatment, using bacteria to breakdown algae.
c. tertiary treatment, using bacteria to break down algae.
d. tertiary treatment, removing nitrogen and phosphorous.

Respuesta :

Secondary treatment removing nitrogen and phosphorous will best prevent likelihood of eutrophication.

What is Eutrophication?

This is defined as  a gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem.

These nutrients are organic which is what Secondary treatment deals with which was why option A was chosen as the most appropriate choice.

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