The concentrations of which two chemicals is particularly high in raw sewage?
A)Argon and nitrogen
B)Helium and carbon
C)Carbon and argon
D)Nitrogen and phosphorus

Question

Quizplus · Accepted Answer

Nitrogen and phosphorus are two chemicals that are particularly high in raw sewage. Nitrogen comes from urine and proteins in feces, while phosphorus comes from detergents and food scraps. Both of these chemicals can cause problems in bodies of water if not properly treated before disposal.

The Concentrations of Which Two Chemicals Is Particularly High in Raw