The COD may vary due to Select one a All of the above b Temp

The COD may vary due to:

Select one:

a. All of the above

b. Temperature, pressure, ability of microorganisms to use the waste

c. None of the above

d. Time, temperature, nature of the waste

e. Ability of microorganisms to use the waste, the nature of the waste, temperature

Solution

Option C is correct. It does not depend on any thing. It degrade the waste whether it is biodegradable or non bio degradable. It is a chemical and it does not depend on temperature of waste, time and nature of waste.