TOP WATER its an univeral problem all countries are having this sistuacion, we dont know what kind of water are we drinking,even purify water are not sure nowadays ,and this about the pollution world has,but what we can an do becuase this is as i said a universal problem and we are almost loosing all water sources we  have,water is finishing in our eyes and no bod is thinking it,people said that the best water its in usa but even though is supposed  to have one of the safest  drinking water suplies in the world ,i iam concerned.