How is the amount of biodegradable organic matter in sewage water estimated?
A. Chemical Oxygen Demand
B. Physical Oxygen Demand
C. Biological Oxygen Demand
D. Mathematical Oxygen Demand
Answer:C
How is the amount of biodegradable organic matter in sewage water estimated?
A. Chemical Oxygen Demand B. Physical Oxygen Demand C. Biological Oxygen Demand D. Mathematical Oxygen Demand