A) BOD
B) CFC
C) MIC
D) ABS.
Correct Answer: A
Solution :
: Strength of sewage or degree of water pollution is measured in terms of BOD (biological oxygen demand) value. BOD may be defined as, number of miligrams of\[{{O}_{2}}\]required for decomposition of one litre of waste or water by decomposing micro-organisms (bacteria). If BOD is below 1500 mg/litre, it indicates weak sewage or less pollution, if it is 1500 - 4000 mg/litre it indicates medium sewage or medium pollution and above this value it indicates strong sewage or high pollution.
You need to login to perform this action.
You will be redirected in
3 sec
