Question

Which of the following is the effect of high BOD?

• A. More birth of aquatic plants
• B. More birth of fishes
• C. Higher dissolved oxygen
• D. Lower dissolved oxygen

Answer 1

Answer:

D. Lower dissolved oxygen

• The high BOD results in the reduction of dissolved oxygen in the water.

• This is because the maximum amount of oxygen is utilized by microbes in decomposing the organic wastes of water.