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In less than two centuries, humans have increased the total amount of carbon dioxide in the atmosphere by ________ from the burning of fossil fuels and the destruction of forests. a) 5% b) 15% c) 25% d)
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Aug 2, 2017
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In less than two centuries, humans have increased the total amount of carbon dioxide in the atmosphere by ________ from the burning of fossil fuels and the destruction of forests.
a) 5%
b) 15%
c) 25%
d) 50%
History
high-school
OleVik
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I think that it is A
Darj
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Aug 6, 2017
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Darj
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