Describe eutrophication

6 main steps (to be written in continuous prose):Leeching of nitrates causes algal bloomLight is absorbed by allege so no photosynthesis and plants dieCO2 builds up and no O2 is producedO2 is used by aquatic animals for respirationO2 is eventually depleted so aerobic organisms die and decomposeWater becomes putrid due to anaerobic organisms releasing toxic waste

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