The atmosphere contains about 78% nitrogen gas, 21% oxygen, less than 1% argon, and a number of trace gases including 0.04% carbon dioxide. The percentage of water vapor varies, with as much as 1% by weight at the surface, and an average of 0.4% for the atmosphere as a whole. A cubic meter of air at the surface can hold up to 30 grams (1/6 fluid ounce) of water.
The atmosphere includes a layer of ozone (O3) within the stratosphere, and an ionized layer of rarefied gases at high altitudes.
Nitrogen makes up 78% of the Earth's atmosphere. Oxygen makes up about 21%.
Nitrogen makes up about 80% of the Earth's atmosphere.
Oxygen makes up 21% of the Earths atmosphere.
Nitrogen
Carbon dioxide makes up the majority of the Martian atmosphere, accounting for about 95% of the gases present.
Nitrogen makes up about 79% of the atmosphere.
CO2 makes up approximately 0.03% of Earth's atmosphere
Nitrogen makes up 78% of the Earth's atmosphere. Oxygen makes up about 21%.
Nitrogen makes up about 80% of the Earth's atmosphere.
Oxygen makes up 95% of Earth's atmosphere.
The gas that makes up 21% of Earth's atmosphere is oxygen.
Nitrogen makes up about 78% of the Earth's atmosphere.
Earth's atmosphere makes up a blanket or an envelope around it, which is a mixture of many gases.
Nitrogen
Nitrogen makes up 78% of Earth's atmosphere.
Nitrogen makes up 78% of the Earth's atmosphere.
Argon makes up about .93 percent of the Earths atmosphere. Hope this helps! (: