72. Measuring Biochemical Oxygen Demand (BOD) is a method used for (1) Working out the efficiency of R.B.Cs. about their capacity to carry oxygen (2) Estimating the amount of ... driven automobile engines (4) Measuring the activity of Sacccharomyces cerevisae in producing curd on a commercial scale Answer : Estimating the amount of organic matter is sewage water...
BOD stands for : (1) Biological oxidation demand (2) Biological oxygen demand (3) Biochemical oxygen demand (4) Biotic oxidation demand Answer : Biochemical oxygen demand...
Biochemical Oxygen Demand (BOD) of sewage is the (a) Oxygen required to oxidise (b) Oxygen required to oxidise biologically inactive organic matter* (c) a and b both (d) none of these Answer : (b) Oxygen required to oxidise biologically inactive organic matter*...
Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygen d. Chemical reaction with CO2 (1) a and b (2) b and c (3) c and d (4) a and c Answer : a and c...
Of the following man-made disasters, which is socially induced ? (1) Debris Avalanche (2) Salt Water Intrusion (3) Arson (4) Ozone depletion Answer : Arson...
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