Acid rain

Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants, aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmospher...
Found on http://en.wikipedia.org/wiki/Acid_rain

acid rain

Rain that contains such acidic compounds as sulfuric acid and nitric acid, which are produced by the combination of atmospheric water with oxides released when hydrocarbons are burned. Acid rain is widely considered responsible for damaging forests, crops, and human-made structures, and for killing aqua-tic life.
Found on http://www.encyclo.co.uk/local/22291

Acid Rain

(See acid deposition.)
Found on http://www.epa.gov/OCEPAterms/

acid rain

[n] - rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water
Found on http://www.webdictionary.co.uk/definition.php?query=acid%20rain

acid rain

<biology, plant biology> This is rain which has turned acidic because of the presence of sulphur or nitrogen oxides (both created from burning coal and other fossil fuels) in the atmosphere. Acid rain is a serious environmental problem, it can kill trees and harm plants and animals in lakes and ponds. ... (09 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

acid rain

acid precipitation noun rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water
Found on http://wordnetweb.princeton.edu/perl/webwn?s=acid%20rain

Acid Rain

A term used to describe precipitation that has become acidic (low pH) due to the emission of sulfur oxides from fossil fuel burning power plants.
Found on http://www.electromn.com/glossary/a.htm

Acid Rain

A term used to describe precipitation that has become acidic (low pH) due to the emission of sulfur oxides from fossil fuel burning power plants.
Found on https://energy.gov/eere/energybasics/articles/glossary-energy-related-terms

acid rain

a theory that pollution rises into the atmosphere and chemicals are returned to earth in the rain.
Found on http://www.ircpolitics.org/glossary.html

Acid Rain

Acid rain is polluted and harmful to the environment. Acid rain has a low pH. Acid rain may have been a component of the K-T extinction.
Found on http://www.enchantedlearning.com/subjects/dinosaurs/glossary/

acid rain

acid rain or acid deposition,form of precipitation (rain, snow, sleet, or hail) containing high levels of sulfuric or nitric acids (pH below 5.5–5.6). Produced when sulfur dioxide and various nitrogen oxides combine with atmospheric moisture, acid rain can contaminate drinking water, damage ve...
Found on http://www.infoplease.com/ce6/sci/A0802334.html

Acid rain

Acid rain: Rain resulting from the combination of fossil fuel emissions and water in the atmosphere. The environmental effects of acid rain include the acidification of lakes and streams, damage to trees at high altitude, the acceleration of decay in buildings and poorer air quality. Acid rain also poses serious human health risks by contributing t...
Found on http://www.medterms.com/script/main/art.asp?articlekey=24456

acid rain

Acidic precipitation thought to be caused mainly by the release into the atmosphere of sulphur dioxide (SO2) and oxides of nitrogen (NOx), which dissolve in pure rainwater making it acidic. Sulphur dioxide is formed by the burning of fossil fuels, such as...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0010215.html

Acid Rain

Acidified particulate matter in the atmosphere that is deposited by precipitation onto a surface, often eroding the surface away. This precipitation generally has a pH less than 5 and sometimes much lower depending on the concentration of acidic components.
Found on http://www.chemistry-dictionary.com/definition/acid+rain.php

Acid Rain

Air pollution produced when acid chemicals are incorporated into rain, snow, fog or mist. The "acid" in acid rain comes from sulfur oxides and nitrogen oxides, products of burning coal and other fuels and from certain industrial processes. The sulfur oxides and nitrogen oxides are related to two strong acids sulfuric acid and nitric acid. When sulf...
Found on http://www.encyclo.co.uk/local/21292

acid rain

Also called acid precipitation or acid deposition, a precipitation containing harmful amounts of nitric and sulfuric acids formed primarily by nitrogen oxides and sulfur oxides released into the atmosphere when fossil fuels are burned. It may be wet precipitation (rain, snow, or fog) or dry precipit...
Found on http://www.daviddarling.info/encyclopedia/A/AE_acid_rain.html

Acid Rain

Atmospheric drops combine with a range of chemical pollutants such as carbon and sulphur dioxide to form rain, mist or snow that is more acid than normal. It can cause damage to plants many thousands of kilometres away from where it formed.
Found on http://www.epaw.co.uk/EPT/glossary.html

acid rain

Atmospheric precipitation with a pH below 3.6 to 5.7. Burning of fossil fuels for heat and power is the major factor in the generation of oxides of nitrogen and sulfur, which are converted into nitric and sulfuric acids washed down in the rain. See also atmospheric corrosion.
Found on http://www.encyclo.co.uk/local/20742

acid rain

Atmospheric precipitation with a pH below 3.6 to 5.7. Burning of fossil fuels for heat and power is the major factor in the generation of oxides of nitrogen and sulfur, which are converted into nitric and sulfuric acids washed down in the rain. See also atmospheric corrosion
Found on http://www.encyclo.co.uk/local/21115

ACID RAIN

Cloud droplets combining with gaseous pollutants, such as oxides of sulfur and nitrogen, to make falling rain or snow acidic.
Found on http://www.stormfax.com/wxwords.htm

ACID RAIN

Cloud droplets combining with gaseous pollutants, such as oxides of sulfur and nitrogen, to make falling rain or snow acidic.
Found on http://www.stormfax.com/wxwords.htm

ACID RAIN

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic (eg. pH
Found on http://ggweather.com/glossary.htm

Acid Rain

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic (e.g. pH < 5.6).
Found on http://www.encyclo.co.uk/local/22268

Acid rain

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic (eg. pH < 5.6).
Found on http://www.timeanddate.com/weather/glossary.html

Acid rain

Commonly used to mean the deposition of acidic components in rain, snow, fog, dew, or dry particles. The more accurate term is acid precipitation. Clean or unpolluted rain has a slightly acidic pH of 5.6, the extra acidity in rain comes from the reaction of air pollutants, primarily
Found on http://www.encyclo.co.uk/local/20453
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