Why does fish mortality occur due to eutrophi | vedclass

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(C) Eutrophication is the process of nutrient enrichment in water bodies,which leads to excessive growth of algae (algal bloom).As these algae die,the

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Unavailability of oxygen

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(C) Eutrophication is the process of nutrient enrichment in water bodies,which leads to excessive growth of algae (algal bloom).As these algae die,their decomposition by microorganisms consumes a large amount of dissolved oxygen in the water.This leads to a significant decrease in the level of dissolved oxygen (Biological Oxygen Demand increases),causing the death of aquatic organisms like fish due to hypoxia (lack of oxygen).

Column-$I$	Column-$II$
$(1)$ Electrostatic precipitator	$(a)$ Removes gases like $SO_2$
$(2)$ Scrubber	$(b)$ Reduces automobile emission
$(3)$ Catalytic converter	$(c)$ Removes particulate matter

Why does fish mortality occur due to eutrophication?

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Match the columns:

Column-$I$ Column-$II$

$(1)$ Electrostatic precipitator $(a)$ Removes gases like $SO_2$

$(2)$ Scrubber $(b)$ Reduces automobile emission

$(3)$ Catalytic converter $(c)$ Removes particulate matter

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