Plus only about a third of humans can produce methane...
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PhosphorBurnedEyes Swastika Shop opening here soon, Fri 10 Sep 2021, 17:09,
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Yes, farts are mostly CO2 or N2.
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FeralCatMan Long ads need comments sections, Fri 10 Sep 2021, 20:22,
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And a bit of PO²
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Tony Hayers DEFUND THE POLICE, Fri 10 Sep 2021, 20:48,
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