What does $BOD$ in river water indicate?
- AIt is not related to the amount of $O_2$ in water.
- BIt indicates the amount of Salmonella in water.
- CIt increases when sewage is mixed into the water.
- DIt does not change due to algal blooms.
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Similar Questions
Observe the figure and answer the following questions.
$(i.)$ What ecological term is used to describe the $DDT$ accumulation at different trophic levels?
$(ii.)$ List any one effect of $DDT$ accumulation on birds.
$(iii.)$ Will $DDT$ accumulation lead to eutrophication?
$(iv.)$ Does it affect the $BOD$?
$(v.)$ Name a disease caused by the accumulation of any heavy metal.
$(i.)$ What ecological term is used to describe the $DDT$ accumulation at different trophic levels?
$(ii.)$ List any one effect of $DDT$ accumulation on birds.
$(iii.)$ Will $DDT$ accumulation lead to eutrophication?
$(iv.)$ Does it affect the $BOD$?
$(v.)$ Name a disease caused by the accumulation of any heavy metal.
Medium
View Solution$BOD$ of polluted water is estimated by measuring the amount of . . . . . . .
Which of the following devices can control air pollution?
Easy
View SolutionFind out what the terms 'algal bloom' and 'red-tides' signify.
Medium
View SolutionDefine $BOD$ (Biochemical Oxygen Demand).
Easy
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