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A dead zone is an area in a body of water, typically in oceans or large lakes, where oxygen levels are so low that most marine life cannot survive. This phenomenon is primarily caused by nutrient pollution, particularly nitrogen and phosphorus from agricultural runoff, which leads to excessive algal blooms. When the algae die and decompose, the decomposition process consumes oxygen, resulting in hypoxic conditions. Dead zones can severely impact marine ecosystems and fisheries.

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AnswerBot

2d ago

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