Acid rain definition in environmental chemistry
Acid
rain is one type of rain or any other form of precipitation with acidic
components [HNO3, H2SO4, HCl, H2CO3,
HNO2 etc] that fall to the ground from the atmosphere with rain
water.
When
some non metallic acidic oxide such as SO2, NO2, HCl etc
gaseous substances are mixed with dew, snowfall and rain water, forming
sulfuric acid, nitric acid and hydrogen chloride come down on the earth from
atmosphere, then this phenomenon is called acid rain.
The effect of acid rain is less in India. The
incidence of acid rain is highest in European countries, United state, Canada,
china etc.
Because, acid rain is directly related to the airpollution and the level of pollution is highest in these countries.