Question

2. BOD of water means ..........
a. Biological oxygen demand
b. Biochemical oxygen demand
c. Biologically observed diatoms
d. Biologically observed Daphnia​

Answer 1

Answer:

A is the correct option

Answer 2

Answer:

a). Biological oxygen demand

Explanation:

BOD is a measure of the amount of oxygen required to remove waste organic matter from water in the process of decomposition by aerobic bacteria (those bacteria that live only in an environment containing oxygen). ... BOD is used, often in wastewater-treatment plants, as an index of the degree of organic pollution in water.