To: Zhang Fei
certainly doesn't cause respiratory problems
Ever tried to breathe much of it?
15 posted on
12/01/2015 8:57:19 AM PST by
SpinnerWebb
(Winter is coming)
To: SpinnerWebb
Ever tried to breathe much of it? Every single minute of every single day. Atmospheric air is 0.039% CO2. I breathe even more nitrogen (78% of atmospheric air).
17 posted on
12/01/2015 10:40:00 AM PST by
Zhang Fei
(Let us pray that peace be now restored to the world and that God will preserve it always.)
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