The air we breath is composed of four major gases: 78.09% Nitrogen, 20.95% Oxygen, 0.93% Argon, and 0.039% Carbon Dioxide. The last few percentage points are divvied up amongst other gases that float around. That 21% of Oxygen in the air is the catalyst for so many things. It brings life to us as breath, and is half of a molecule of water, which brings life to every corner of the planet and shapes the very surface us outdoor lovers trek over.
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