App Logo

No.1 PSC Learning App

1M+ Downloads
In biological treatment there is formation of a biological film of:

AAlgae

BAerobic bacteria

CProtozoa

DAnaerobic bacteria

Answer:

D. Anaerobic bacteria


Related Questions:

Which method is used to measure the colour of water?
Temporary hardness is due to the presence of :
The permissible turbidity of drinking water is :
Method of removing permanent hardness
The bacteria that can survive in the presence and absence of oxygen are called