Using complete sentences, describe the chain of events that leads to the eutrophication of water systems

The complete process is explained below

Explanation:

Eutrophication is the enrichment of a body of water due to the introduction of substances containing a high level of nitrates and phosphates. This may cause the water bodies to be depleted of oxygen.

The chain of events that lead to the eutrophication of water systems are listed and described below:

Introduction of phosphate and nitrate rich substances into the water systemGrowth of algae in the water systemBlockage of sunlight by algae, reduction in the rate at which photosynthesis takes place, hence reduction in oxygen level.Exhaustion of oxygen by decomposers and increase in Biological Oxygen Demand (i.e. high BOD levels)Aquatic organisms/animals die due to unavailability of oxygen for respiration Formation of sediments in the water bodySettlement of sediments and the extinction of life

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