What Are the Three Main Gases in the Air?

Answer

The three main gases in air are nitrogen whose volume occupies 78.09%, oxygen at 20.95% and argon occupying 0.93%. All the other remaining gases are referred to as trace gases, among which are the greenhouse gases such as water vapour, carbon dioxide, methane and ozone.
Q&A Related to "What Are the Three Main Gases in the Air"
Nitrogen, Carbon Dioxide and Oxygen
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The atmosphere is a mixture of gases that surround the Earth. It is essential to all life and serves several purposes, such as providing air for respiration, absorbing harmful ultraviolet
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Three greenhouse gases are Methane, Carbon Dioxide, and Nitrous Oxide.
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Sulfur hexafluoride is the heaviest of the heavier than air gases. http://en.wikipedia.org/wiki/Sulfur_hexafluoride
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