BOD is

A

Biological Oxygen Demand

B

Bacterial Oxidation Demand

C

Biochemical Oxygen Demand

D

Biochemical Oxidation Demand

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B.O.D is related to

The major source of BOD in the river Ganga is

Assertion : The amount of BOD in the water is a measure of the amount of organic material in the water . Reason : Clear water has BOD less than 5 ppm whereas highly polluted water can have BOD value of 17 ppm or more .

Study the graph given below and choose the option that is correctly describing the relationship between dissolved oxygen (DO) and biochemical oxygen demand (BOD) : (a) DO prop 3BOD (b) DO prop 2BOD (c) DO prop 1/(BOD) (d) DO prop BOD

The BOD of an eutrophic lake will be:

B.O.D. is connected with

BOD (biological oxygen demand) is

The greater BOD of waste water

High BOD indicates

Assertion: BOD indicates the extent of water pollution by organic wastes. Reason: Increase in BOD decreases dissolved oxygen of wastewater.

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