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<h2>━☆ﾟ.*･｡ﾟFine, but not as good</h2>
Radon is <span>not a source of air pollution related to human activities</span>
Because the heat of the ocean mixed with the cold air above the ocean causes a hurricane
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thus, 4 moles of oxygen gas (O2) would have a mass of 128 g.
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