Question:
Organic nutrients in water bodies promote
Organic nutrients in water bodies promote
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Organic matter increases bacterial growth, BOD, and can trigger eutrophication in water bodies.
Updated On: Jul 2, 2026
- Growth of the natural population of aquatic bacteria
- BOD
- Eutrophication
- Growth of the natural population of aquatic bacteria, BOD and Eutrophication
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The Correct Option is D
Approach Solution - 1
Organic nutrients serve as food for aquatic microbes, leading to an increase in bacterial growth. This elevates the Biological Oxygen Demand (BOD) and can lead to eutrophication due to excessive nutrient enrichment in water, causing algal blooms.
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Approach Solution -2
Why the combined option is correct: The first three options each describe only one link in a single cause-and-effect chain, so picking any one alone is incomplete.
Organic nutrients entering a water body first feed aquatic bacteria, whose population grows; this bacterial decomposition consumes dissolved oxygen, raising the Biological Oxygen Demand; and the nutrient enrichment itself drives excessive algal and plant growth, i.e. eutrophication.
Because all three effects occur together as one continuous process, the option listing all of them is the correct choice.
Organic nutrients entering a water body first feed aquatic bacteria, whose population grows; this bacterial decomposition consumes dissolved oxygen, raising the Biological Oxygen Demand; and the nutrient enrichment itself drives excessive algal and plant growth, i.e. eutrophication.
Because all three effects occur together as one continuous process, the option listing all of them is the correct choice.
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