Multiple choice

What is BOD?

  1. Amount of oxygen required for biological reduction

  2. Amount of oxygen required for biological phosphorylation

  3. Amount of oxygen required for biological oxidation

  4. None of these

  5. NA

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is the correct option as it is the amount of oxygen required for biological oxidation required by microbes in any unit volume of water. Full form of BOD is biological oxygen demand.