UPSC 2017 › Environment & Ecology › Water & Wetland Conservation

1 question · 2017 · answers as per the UPSC key

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UPSC 2017 · Q59 · Environment & Ecology › Water & Wetland Conservation · Save

Biological Oxygen Demand (BOD) is a standard criterion for

(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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Answer: (c) Pollution assay in aquatic ecosystems