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Biology Unit 4
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Topic 5: On the wild side
14. Outline the causes of global warming ­ including
the role of greenhouse gases (carbon dioxide and
methane, CH4) in the greenhouse effect.
Global warming first emerged as a cause of global concern in the 1980's, a result of…

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Biology Unit 4
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Video Tutorials:
http://brightstorm.com/science/biology/conservation-biology/climate-change/




Text Book: p. 40 - 41

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