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Home Q & A Board Humanities History
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a9rsen a9rsen
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8 years ago
Global warming
A) replaced the 1970s environmental issue of a returning ice age. 
B) has not been proven to be caused by human activity. 
C) replaced the ozone layer as the most pressing environmental issue by 2007. 
D) all of the above. 
E) none of the above.
Textbook 
Civilizations Past & Present, Volume 2 (from 1300)

Civilizations Past & Present, Volume 2 (from 1300)


Edition: 12th
Authors:
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tubbleweedtubbleweed
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#1
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8 years ago
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a9rsen Author
wrote...
#2
8 years ago
My friends suggested the same thing, thanks for confirming
wrote...
#3
7 years ago
very happy to have helped!
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