ACKNOWLEDGEMENT:
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Figure
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Source of Figure
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Figure 5a
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http://2012books.lardbucket.org |
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Figure 5b
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http://pixshark.com |
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Figure 6
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http://www.telegraph.co.uk |
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Figure 7
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http://www.buzzle.com |
Acid Rain:
Acid rain is can destroy vegetation by disturbing the pH of
the soil. Therefore, Calcium carbonate is sprinkled in such vegetation areas to
neutralize the effect of acid rain and help maintaining the pH of soil.
Figure 5a:
Acid rain also erodes buildings and other stone structures, like statues and monuments due to its acidic nature.
Figure 5b:
Smog:
The word smog is coined from the combination of smoke and
fog.
Figure 6:
It is fog in nature which appears to be a dense cloud of
smoke due to the presence of ozone. It is an irritant to eyes and the
respiratory system and can damage the lungs.
Ozone layer
depletion:
A layer of ozone, O3 is naturally found in the
upper atmosphere. It is a protective coating around the planet earth and prevents
the entrance of harmful radiations form the sun, into the earth’s atmosphere.
Figure 7:
The use of chlorofluorocarbons, (CFCs; Chlorine containing
compounds) in compressors and aerosols have led to the depletion (thinning or
perforation) of the ozone layer. This is because CFCs react with ozone to form
different composite compound. The use of CFCs has greatly been discouraged
since its adverse effects had been discovered. Depletion of ozone is alarming
because its depletion will allow the harmful radiations of the sun to reach and
adversely affect the planet earth.
