How does the abundance of the most abundant gas compare on different planets?

Jun 7, 2017 ... The most abundant gas in the atmosphere is nitrogen, making up about 78%, followed by oxygen at about 21%. Nitrogen's stability allows it to ... ... atmosphere, and consequently most of the clouds and stormy weather. Vertical ... Thus, water vapor is the third or fourth most abundant gas in surface air. Mar 27, 2025 ... Nitrogen makes up about 78% of Earth's atmosphere and Argon is the third most abundant gas (1%) in Earth's atmosphere, after oxygen (21%). Jun 16, 2011 ... ... most abundant element in the Universe. ... It is significant that so much carbon dioxide stays in the atmosphere because CO2 is the most important ... ... atmosphere from the soil, volcanic vents, fumaroles, and hydrothermal systems. By far the most abundant volcanic gas is water vapor, which is harmless. ... most abundant forms of the other volatile elements were their compounds with hydrogen. If so, methane, ammonia, and water vapour, together with the noble gas ... CH4 is the second most abundant greenhouse gas in the atmosphere, with an estimated global mixing ratio of 1$#46;85 ppm as of 2020. Despite having a mixing ... Feb 23, 2023 ... Water vapour is the most abundant greenhouse gas. It increases as the earth's atmosphere warms but unlike CO2, which can remain in the ... The predominant gas is carbon dioxide, making up 95.9 percent of the atmosphere's volume. The next four most abundant gases are argon, nitrogen, oxygen and ... Jul 16, 2019 ... The most abundant greenhouse gas overall, water vapor differs from other greenhouse gases in that changes in its atmospheric concentrations ...