What is acid rain?Its cause and effects?
Acid rain – Acid rain is rain or any other form of precipitation that is unusually acidic.”Acid rain” is a popular term referring to the deposition of wet (rain, snow, sleet, fog and cloud water, dew) and dry (acidifying particles and gases) acidic components. Acid rain can also damage buildings and historic monuments, especially those made of rocks such as limestone and marble containing large amounts of calcium carbonate. Acids in the rain react with the calcium compounds in the stones to create gypsum, which then flakes off. CaCO3 (s) + H2SO4 (aq) CaSO4 (aq) + CO2 (g) + H2O (l) The effects of this are commonly seen on old gravestones, where acid rain can cause the inscriptions to become completely illegible. Acid rain also increases the oxidation rate of metals, in particular copper and bronze.[33][34] Cause:- When some unwanted material o toxic gases mixed with air,then it is said to be air-pollution,sulpur & water drops of rain get mixed & form sulphuric acid,this is the cause tha
