Question $11$

Please select choice$/$choices that are not true?

A$.$ Prior to $1972,$ sewage was discharged directly into the water

B$.$ Raw sewage is $99\%$ waste and $1\%$ water

C$.$ Primary treatment removes the organics, bacteria, urine, soap and detergents

D$.$ After primary and secondary treatment $-$water is released back into a local reservoir

E$.$ Bacteria do not help with the sludge treatment only a machine that is designed to treat sludge

F$.$ Aquatic plants known as Benthic plants help with the water treatment

$A,C,D$ and F are not true

Only B and E are not true

Only A and E are not true

Only F is true