Form Group 3G 4th December 2006. What do you know about acid rain?
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Transcript of Form Group 3G 4th December 2006. What do you know about acid rain?
![Page 1: Form Group 3G 4th December 2006. What do you know about acid rain?](https://reader036.fdocuments.net/reader036/viewer/2022062801/56649e6a5503460f94b67e35/html5/thumbnails/1.jpg)
Form Group 3G
4th December 2006
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What do you know about acid rain?
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Starter Activity
Acid Rain attacks rocks such as chalk, ____marble____ and limestone. This is called _____weathering_____. Acid Rain is formed by___gases___ such as _sulphur_ _dioxide_ and oxides of ___nitrogen__ joining with water in the atmosphere. The gases that form acid rain come from___industry___ and
___car__ __fumes___. Acid Rain damages___trees___ and__plants____. It also pollutes water killing___fish___.
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What is acid rain?
• Normal rainwater has a pH of about 5.6, which means it is naturally slightly acidic.
• This natural acidity is due to carbon dioxide which dissolves in rainwater and forms carbonic acid, a weak acid.
Rainwater with a lower pH than normal is called acid rain.
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How acid rain forms?
S+02 S02
2S02+02 2S03
S03+H20 H2S04
Volcanoes
Burning coal
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How acid rain forms?
N+ ½ O2 NO
2NO + O2 2NO2
NO2 + H20 HNO3
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Effects of Acid Rain• Acid rain can increase the
acidity of lakes, dams and streams and cause the death of aquatic life.
• Acid rain can increase the acidity of soil, water and shallow groundwater.
• Acid rain can dammage forests.
• Acid rain erodes buildings
and monuments.
• Acid particles in the air are suspected of contributing to respiratory problems in people.
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Effects of Acid Rain
Burning Fossil Fuels
Greenhouse Effect
Water vapour, carbon dioxide,
methane and nitrous oxides.
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Example
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