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Which substance is a greenhouse gas that is emitted by human activities, is the most widespread, and remains in the air the longest?
water vapor
methane
fluorinated gas
carbon dioxide
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carbon dioxide
It is the most widespread greenhouse gas emitted by human activities (fossil fuel burning, deforestation) and a large fraction remains in the atmosphere for decades to centuries, far longer than water vapor or methane.
It is the most widespread greenhouse gas emitted by human activities (fossil fuel burning, deforestation) and a large fraction remains in the atmosphere for decades to centuries, far longer than water vapor or methane.
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