Question

Which of the following steps is required before bacteria can break down organic material in wastewater?

Water is placed in an aeration basin to increase oxygen.
Primary clarifiers separate solids from the wastewater.
Filtration removes chlorine and salt from the water.
Disinfection purifies water before it is released.

Answer 1

am i right with B?

Answer 2

@vocaloid

Answer 3

@laylalyssa

Answer 4

@dude

Answer 5

Aeration basin & Primary clarifiers. Basecally A and B
it's a technique to filter water and enhance the quality for eventually make that water safe to use be humans.

Answer 6

Test question

Answer 7

i see how it is

Answer 8

Welp, I can answer if I think it's a test ALSO it got closed so c:

Answer 9

stop typing please.

Answer 10

your irrelevant

Answer 11

Don't go off topic c: