write the note on the composition of the atmosphere and the importance of atmospheric gases
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Dry air from Earth's atmosphere contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and traces of hydrogen, helium, and other "noble" gases (by volume), but generally a variable amount of water vapor is also present, on average about 1% at sea level.
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The atmosphere is composed mainly of Nitrogen and oxygen, Which make up about 99% of clean, dry air. nitrogen 78% Oxygen 21% and other gases like carbon dioxide, argon , hydrogen, helium , and other gases comprise one percent by volume.
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