No, it isn't - nitrogen is actually most prevalent, making up 78% of the Earth's atmosphere. Oxygen is the second most plentiful gas at 21%, followed by argon (1%), and carbon dioxide (0.038%).
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Yes, oxygen is the second most prevalent gas in Earth's atmosphere, making up about 21% of the composition. Nitrogen is the most prevalent gas, making up about 78% of the atmosphere.
Nitrogen is the most prevalent gas in Earth's atmosphere, making up about 78% of the total composition. Oxygen is the second most abundant gas, at around 21%.
The two most abundant gases in Earth's atmosphere are nitrogen (about 78%) and oxygen (about 21%).
The three most abundant gases in Earth's atmosphere are nitrogen (78%), oxygen (21%), and argon (0.93%).
As you travel higher in Earth's atmosphere, the composition of gases changes in terms of their concentration. Oxygen, nitrogen, and argon are the most abundant gases in the lower atmosphere, while the percentage of oxygen decreases and other gases like helium and hydrogen become more prevalent in the upper atmosphere. The overall pressure also decreases with altitude, causing the air to become less dense.
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