Nitrogen.
20% is made up of oxygen
The remaining ~2% is made up of water vapout, carbon dioxide, noble gases, methane, sulphur dioxide, & ammonia.
The Earth has an atmosphere of 78% nitrogen (and 21% oxygen).
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Nitrogen makes up 78% of the Earth's atmosphere. Oxygen makes up about 21%.
Nitrogen
The percentage of oxygen in the atmosphere is approximately 21%. Nitrogen makes up 78% and the last 2% percent is a mixture of various different gases, mostly argon.
Nitrogen makes up about 78% of the Earth's atmosphere
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Nitrogen
Nitrogen
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Nitrogen makes up about 78 percent of Earth's atmosphere.
Nitrogen is the most common element in the Earth's atmosphere.
The element Nitrogen (N) makes up about 78% of the Earth's atmosphere. Nitrogen is a gas at room temperature and has the atomic number 7. Nitrogen is in Period 2 of the Periodic Table and is the first element in Group 15(5).
The Earth has an atmosphere of 78% nitrogen (and 21% oxygen).
Nitrogen in the atmosphere represents about 78%. Oxygen is the second most common element representing about 21%.
nitrogen
Nitrogen