how is acid rain generated?

Question

please make the answer simple, thanks.

Answer 1

or more accurately acid precipitation is commonly used to mean the deposition of acidic components in rain, snow, dew, or dry particles.[1] Acid rain occurs when sulfur dioxide and nitrogen oxides are emitted into the atmosphere, undergo chemical transformations, and are absorbed by water droplets in clouds. The droplets then fall to earth as rain, snow, mist, dry dust, hail, or sleet. This increases the acidity of the soil, and affects the chemical balance of lakes and streams.[2]

The term "acid rain" is often used more generally to include all forms of acid deposition — both wet deposition, where acidic gases and particles are removed by rain or other precipitation, and dry deposition removal of gases and particles to the Earth's surface in the absence of precipitation.[3]

Acid rain is defined as any type of precipitation with a pH that is unusually low.[4] Dissolved carbon dioxide dissociates to form weak carbonic acid giving a pH of approximately 5.6 at typical atmospheric concentrations of CO2.[5] Therefore a pH of less than 5.6 has sometimes been used as a definition of acid rain.[6] However, natural sources of acidity mean that in remote areas, rain has a pH which is between 4.5 and 5.6 with an average value of 5.0 and so rain with a pH of less than 5 is a more appropriate definition.[7] The US EPA says, "Acid rain is a serious environmental problem that affects large parts of the US and Canada" [8] Acid rain accelerates weathering in carbonate rocks and accelerates building weathering. It also contributes to acidification of rivers, streams, and forest damage at high elevations. When the acid builds up in rivers and streams, it can kill fish.

Answer 2

Acid rain is any form of precipitation---rain ,snow ,sleet, fog-which contains high levels of sulphuric acid and nitric acid.The two important air pollutants which produce these acids are sulphur dioxide and nitrogen oxide .These pollutants combine with the water vapour in the air and produce the above acids.
The sulphur dioxide gas is emitted by power stations and automobiles whereas burning of fossil fuels contribute to both nitrogen and sulphur emissions.Volcanic eruption is also considered as one of the sources of these pollutants.

Answer 3

sulphur dioxide is produced from factories as a waste gas. It is released into the atmosphere where it dissolves in rain. This makes sulphuric acid, so the rain becomes slightly acidic.

Answer 4

how about a image from google -- http://portal.unesco.org/education/en/file_download.php/139c5df78bcee496e053ef6052c4a5e3How+acid+rain+is+formed+frame.jpg

Answer 5

rain mixed with atmospheric gases

Answer 6

grace(rain) + law(acid)

Answer 7

its from pollution
duh!
its a shame how we are the reason this earth is dying