Eutrophication Dbq

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The agriculture industries have affected the marine life due to eutrophication. Eutrophication occurs when human activity water because of the chemicals, nitrogen and phosphorus which run off into the water. Eutrophication results in algal bloom. An algal bloom forms when lots of nitrogen and phosphorus are set inside a body of water which results in an excess amount of algae in lakes, oceans, or streams. The waters can not take in a lot of algae because in can affect the habitat of the animals. It can also affect the population of the sea animals. As seen in Document A, the farmers who use fertilization for their crops caused pollution in their fields. The additional amounts of the fertilizer end up running into water which crates dead zones. They are called dead zones because of the lack of oxygen in the area. Dead zones can be created by pollution such as factory smoke and waste materials. In this case, The pollution is coming from the extra amount of fertilizer that the farmers are using. …show more content…

For Example, Documents B shows that the amount of algae is increasing through steps. The oligotrophic stage how the beginning of the marine life's habitat before fertilizer was used. The mesotrophic stage shows that the fertilizer is being used which is helping the soil and bacteria began to increase and algal blooms start to form. It is affecting the algae amount a little. The eutrophic stage shows the over use of the fertilizer. The algae a The amount of algae has reach its maximum amount in the water. This is because so much fertilizer has been used that it continues to run into the bodies of water. The run off of fertilizers and caused many of the sea creatures to

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