Environment and Ecology
2017
Environmental Pollution
Ecology & Ecosystems
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
Correct Answer: Option C
Biological Oxygen Demand (BOD) is the amount of dissolved oxygen required by aerobic organisms to decompose organic matter in a water sample at a specific temperature over a specific period.
A higher BOD indicates a greater amount of organic pollution, as more oxygen is needed to break down the organic material.
Therefore, BOD is a standard criterion for assessing pollution in aquatic ecosystems.
Hence, option C is correct.
Sources:
More Environment and Ecology Questions
Consider the following statements:Environment and Ecology · 2019Among the following Tiger Reserves, which one has the largest area under “Critical Tiger Habitat”?Environment and Ecology · 2020Consider the following:Environment and Ecology · 2022With reference to the management of minor minerals in India, consider the following statements:Environment and Ecology · 2019The Genetic Engineering Appraisal Committee is constituted under theEnvironment and Ecology · 2015