Question

ntroduced sewage in water systems _______.
a.
decreases levels of phosphorus and nitrogen
b.
increases oxygen levels
c.
increases concentrations of solids
d.
leads to decreases in the temperature


Please select the best answer from the choices provided

A
B
C
D

Answer 1

C

Sewage adds organic and suspended solids to water, increasing total solids and turbidity (it also raises nutrients like N and P and depletes dissolved oxygen, rather than increasing it).