Water Pollution: Is It As Big Of A Problem As We Think?

Part I of Essay
? The following essay will be looking at the factors that cause pollution, and the effect that pollution has on our world today. It will also investigate what it has in store for the future if things do not improve. It will also explore some of the methods used to treat an ....

Part II of Essay
.... need oxygen to survive. If the oxygen level is depressed to zero, all fish in the lake die. Any decomposition that does not contain oxygen starts to generate noxious gases such as Hydrogen Sulfide. Pulp and paper mills, and municipal sewage causes BOD. Nutrients: Nutrients, particularly nitrogen and phosphorus, enrich waters and accelerate the aging of lakes and streams. Also, the result of this is rich plant life which prohibits recreational activities. Plankton blooms depress oxygen levels (as mentioned before) and therefore, endanger liv ....