Basic purpose of this lecture is to presentation on Acid Rain and it’s causes and effects. Acid Rain is the term for the deposition of acidic elements in either wet or dry forms. Natural acid rain can be caused by volcanic emissions and biological processes. “Clean” rain incorporates a natural acidity of in relation to 5.2 on the pH scale on account of water reacting with fractional co2 in the air to carbonic acid. Effects of acid rain is Soils can be damaged by the hydronium ion, which mobilizes aluminum and encourages leaching of minerals for example magnesium essential for plants.