Measuring Biochemical Oxygen Demand (BOD) is a method used for :
estimating the amount of organic matter in sewage water.
working out the efficiency of oil driven automobile engines.
measuring the activity of Saccharomyces cerevisae in producing curd on a commercial scale.
working out the efficiency of R.B.Cs. about their capacity to carry oxygen.
Causes of water pollution -
Oil pollution
- wherein
Oil is a source of pollution in sea-water. Oil pollution is due to ship accidents, loading and discharging of oil at the harbour, oil refineries and off-shore oil production. Degree of impurity of after due to organic matter is measured in terms of BOD (Biochemical Oxygen Demand). It is the demand for O2 to decompose organic wastes in liter of water.
Option 1)
estimating the amount of organic matter in sewage water.
This is correct option
Option 2)
working out the efficiency of oil driven automobile engines.
This is incorrect option
Option 3)
measuring the activity of Saccharomyces cerevisae in producing curd on a commercial scale.
This is incorrect option
Option 4)
working out the efficiency of R.B.Cs. about their capacity to carry oxygen.
This is incorrect option
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