Explain the causes and management of eutrophication.

Causes of Eutrophication

1. Fertilizers (nitrates and phosphates)

Eutrophication is predominantly caused by human actions due to their dependence on using nitrate and phosphate fertilizers. Agricultural practices and the use of fertilizers on lawns, golf courses and other fields contribute to phosphate and nitrate nutrient accumulation. When these nutrients are washed by surface runoff into lakes, rivers, oceans and other surface waters when it rains, the hungry plankton, algae and other aquatic plant life are well fed, and their photosynthesis activity is increased. This causes a dense growth of algal blooms and plant life, such as the water hyacinths in the aquatic environments.

2. Concentrated Animal Feeding Operations

Concentrated animal feeding operations (CAFOs) are as well the main contributor of phosphorus and nitrogen nutrients responsible for eutrophication. The concentrated _________ ______ _____ ________ ___.
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