Blog 13 2/1/11 Water Pollution

There is only 3% of fresh water in the Earth, and it it needless to say that water pollution is a serious problem. Everyone depends on fresh water. Salt water covers 70% of the earth. Water pollution happens from a variety of sources, from factories producing sulfuric acid, sodium hydroxide, and calcium oxide, to cropland dumping pesticides. Eventually, all of these water pollutants end up in the water, through rain, groundwater, or rivers. Some of these wastes are human waste products as well.