User blog comment:Sparklyplatypus/"Are You Smarter Than an Xth Grader?"/@comment-4800318-20111117005117/@comment-3143320-20111118175420

Nitrogen-78.08% Oxygen 20.95% Argon 0.93% Carbon Dioxide 0.03 Neon 0.0018% Helium 0.00052% Krypton 0.00015% Methane 0.00014%. I learned it all off for science.