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Question
Which of the following leads to depletion of dissolved oxygen in water bodies resulting in loss of all aquatic life?
Which of the following leads to depletion of dissolved oxygen in water bodies resulting in loss of all aquatic life?
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Solution
The correct option is A Eutrophication
Eutrophication is a form of water pollution. It is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus or both. The oversupply of nutrients leads to overgrowth of plants and algae. After the death of such organisms, the bacterial degradation of their biomass consumes the oxygen in the water, thereby creating the state of hypoxia (deficiency in the amount of oxygen reaching tissue) that leads to the death of aquatic plants and animals.So, the correct answer is option A.
Eutrophication is a form of water pollution. It is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus or both. The oversupply of nutrients leads to overgrowth of plants and algae. After the death of such organisms, the bacterial degradation of their biomass consumes the oxygen in the water, thereby creating the state of hypoxia (deficiency in the amount of oxygen reaching tissue) that leads to the death of aquatic plants and animals.
So, the correct answer is option A.
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