Why is water containing excessive algae consi | vedclass

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(B) The excessive use of fertilizers in the surrounding areas leads to the runoff of phosphate ions into water bodies,which promotes the excessive gro

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It leads to eutrophication and depletion of dissolved oxygen.

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(B) The excessive use of fertilizers in the surrounding areas leads to the runoff of phosphate ions into water bodies,which promotes the excessive growth of algae (algal bloom). As these algae die and decompose,they consume dissolved oxygen,leading to a significant decrease in oxygen levels. This depletion of dissolved oxygen is harmful to fish and other aquatic life. Additionally,the decomposition process produces foul odors and makes the water aesthetically unpleasant,rendering it unsuitable for activities like swimming or boating.

Why is water containing excessive algae considered polluted?

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