Biological Oxygen Demand (BOD) is a standard criterion for
Options
(a)Measuring oxygen levels in blood
(b)Computing oxygen levels in forest ecosystems
(c)Pollution assay in aquatic ecosystems
(d)Assessing oxygen levels in high altitude regions
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Class 12Microbes in Human Welfare— NCERT Biology, Chapter 8. The eighth chapter of NCERT's Class 12 biology book, closing Unit VIII, shows microbes as helpers. Lactic acid bacteria turn milk into curd and raise its vitamin B12…
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