Acid rain is a such kind of rain which contains harmful chemicals . But in severely polluted areas .This rain which is very acid can causes harm to wild life lakes trees building and human life health etc .Breathing in chemicals can harmful people . In causes acid rain droop the land if heavy industry there are main causes the acid rain .When acid rain causes the release of chemicals and metals into drinking water it pollute water Fading of the colours of the glass is a common result of the acid rain . in the last thirty years some 700 years old stained glass windows have been damaged by acid rain