Pollution of rivers, lakes, seas and other natural water resources is a very huge problem for our nature, for enviroment where people are excisting. Cause of that is in the fact that the level of enviromental pollution has a straitgh influence on the level of quality of our lives. And mostly the level of enviromental pollution depends from the level of pollution of natural water resources as the rivers, lakes, seas and oceans. The main reason of that is because of the fact that natural wate...