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Title: Which gas, contributed in part by burning fossil fuels, is used by scientists as an indicator of ... Post by: bennac40 on Sep 11, 2017 Which gas, contributed in part by burning fossil fuels, is used by scientists as an indicator of future global warming?
A) CO2 B) nitrogen C) oxygen D) hydrogen Title: Re: Which gas, contributed in part by burning fossil fuels, is used by scientists as an indicator of ... Post by: kingworld on Sep 11, 2017 Content hidden
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