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UPSC CSE Pre 2017
Question #10
Environmental Pollution
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Biological Oxygen Demand (BOD) is a standard criterion for
A
Measuring oxygen levels in blood oxygen levels in forest
B
Computing oxygen levels in forest ecosystems
C
Pollution assay in aquatic ecosystems
D
Assessing oxygen levels in high altitude regions
Pick an option above to test your answer
Reveal Answer ⌄
Subject:
Environment
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Q: Biological Oxygen Demand (BOD) is a standard criterion for... | UPSC CSE Pre 2017 PYQ | UPSCGPT