Question

BOD or Biological Oxygen Demand is the level of oxygen needed in the water body for organisms to survive.

• A. True
• B. False

Answer 1

The correct option is B False

Biological Oxygen Demand is the amount of dissolved oxygen needed by organisms to digest the organic nutrients in water bodies. When the amount of organic nutrients in water increases, the microorganisms that break them down also increase. This increases the BOD and thus lesser oxygen is available for other organisms to breathe.