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Alfred w Yaney
In 1973 at age 12 I took SCUBA lessons at the South East YMCA Ft Wayne Indiana. When diving with compressed gasses. It is VERY important exactly what those gases are. The Earth's Atmosphere is made up of Air. Air contains 77% NITROGEN, 21% OXYGEN, and a whopping 2% other gasses. Co2 is approximately... View More
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