The atmosphere of Venus consists mainly of carbon dioxide, and a small amount of nitrogen. The thick cloud cover is composed of sulfur dioxide and sulfuric acid droplets. Due to the dense atmosphere, the surface temperature ranges from 750 to 930 degrees Fahrenheit (398 to 498 Celsius). The surface pressure is 90 times that of Earth. That's like being one kilometer (more than half a mile) under the ocean.
carbon dioxide?
Mars's atmosphere is composed of about 2.7% nitrogen.
Any atmosphere by definition is made of gas.
The atmosphere of Uranus is a mixture of Hydrogen and Helium, with about 2.5% Methane mixed in, and some other trace gasses.
By volume, hydrogen accounts for around 0.000055%.
Mercury has the thinnest atmosphere of all the planets in our solar system. Mercury's atmosphere is primarily made up of oxygen, sodium, and hydrogen.
Venus' atmosphere consists mostly of carbon dioxide, with clouds containing of sulfuric acid. There are also compounds of chlorine and fluoride.
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Argon accounts 0.934% by volume of the Earth's atmosphere.
95.32%
Jupiter's atmosphere is made of 90% hydrogen and 10% helium
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.
The highest percentage in the Earth's atmosphere is nitrogen, at 78%. Then oxygen(21%) and CO2, 0.9%.
Nitrogen and oxygen make up the largest percentage of the atmosphere.
The standard atmosphere contain 0,934 % argon.
percentage
0.25