n1a8tinecheymoe n1a8tinecheymoe

24-02-2016
Physics

contestada

According to scientific data on climate change, what levels have risen by 30% over the past 200 years?
A. ozone
B. argon
C. carbon dioxide
D. krypton

Respuesta :

24-02-2016

Carbon dioxide levels have risen over the past 200 years. The change has been a whole lot more than 30%.

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