Part one of term paper
? 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 and clean-up wastewater, and oil spills. Today, the industrialization ...

Part two of term paper
... this problem. Here are some things that are associated with pollution: Pathogens: Pathogens are disease causing bacteria, viruses, and protozoa. They usually come from human sewage. As pathogen numbers increase, so does the risk of human health. Biochemical Oxygen Demand: Organic wastes that decay in a body of water. decrease the amount of oxygen found in it. The living things in the lake need oxygen to survive. If the oxygen level is depressed to zero, all fish in the lake die. Any decomposition th ...