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Biology 7 Online
OpenStudy (praetorian.10):

The greenhouse effect is a. the result of an excess of carbon dioxide in the atmosphere. b. a natural phenomenon that maintains Earth’s temperature range. c. the result of the differences in the angle of the sun’s rays. d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere. e. is causing the current increase in the Earth's temperature

OpenStudy (praetorian.10):

which is least debatably controversial

OpenStudy (abhisar):

I think a & b

OpenStudy (praetorian.10):

okay

OpenStudy (praetorian.10):

i'll go with A

OpenStudy (praetorian.10):

its got verification

OpenStudy (praetorian.10):

thanks!

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