Q. In the biological treatment of sewage the masses of bacteria held together by fungal filament to form mesh like structures called as
A) Activated sludge
B) Aerobic process
C) Flocs
D) Anaerobic sludge
Explanation
Useful aerobic microbes grow rapidly and flocs. Flocs are masses of bacteria associated with fungal filaments to from mesh like structure. The growing microbes consume organic matter and thus reduce the Biochemical Oxygen Demand (BOD)
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.