Every lake or river has its PH value. Most of them have a PH between 6 and 8. When acid rain falls too muth that the surrounding of them can not neutralize it, the PH value goes down. The living system will be damaged.
Acid rain can cause marble status carved long time ago to lose their features.
Acid rain has the effect on buildings and monuments. It will lost billions of dollars to repair the damage. Acid rain looks, feels, and tastes just like clean rain. Now, acid rain is an international problem. The focal point to solve it is to reduce the emissions of sulfur dioxide and nitrogen oxides from power station, industrial sources and vehicles.