Acid+Deposition

=__ Acid Deposition __= Acid rain is rain that has been made acidic by certain pollutions in the air. Acid rain is a type of acid deposition which can appear in both wet and dry forms. Both wet and dry depositions can be carried by the wind.

** Wet deposition **
 Wet deposition of acids is rain, sleet, snow, fog or another form of precipitation that has become more acidid than normal. Wet deposition occurs when acids are removed from the atmosphere and delivered to the earths surface.

Dry deposition
Acid deposition also occurs by dry deposition when there is no precipitation. Dry deposition is when gases and dust particles become acidic. These particles will then stick to the ground, plants and other surfaces where they will cause damage. Dry deposition can be responsible for as much as 20 to 60% of the total acid deposition.