Water pollution may severely affect human, plant, and animal life. The effect of water pollution on marine animals and plants is visible in two phenomena— eutrophication and biomagnification.
Eutrophication is a process in which oxygen begins to deplete from water bodies either naturally or because of human activities. Nutrients and chemicals are discharged into water bodies through sewage and effluents. Accumulation of these into water bodies results in the growth of phytoplankton and algae. This obstructs the penetration of oxygen and sunlight into water bodies which may result in the death of aquatic organisms.
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