A) reduce pollutants in waste water to a level where nature can take care of it.
B) makes the waste water free of all pollutants
C) Both the above are correct
D) None of these is correct.
Correct Answer: A
Solution :
reduce pollutants in waste water to a level where nature can take care of it.
You need to login to perform this action.
You will be redirected in
3 sec
