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The first atmosphere, during the Early Earth's Hadean eon, consisted of gases in the solar nebula, primarily hydrogen, and probably simple hydrides such as those now found in the gas giants (Jupiter and Saturn), notably water vapor, methane and ammonia.
Earth’s atmosphere composition. Air is made up of a mixture of different gases. The principal constituents of Earth’s atmosphere are: Nitrogen – about 78% of the atmosphere; Oxygen – about 21%;...
Our planet is surrounded by an invisible shell of air, called the atmosphere, held in place by the Earth’s gravitational field. It’s made up of a mixture of different gases.
2 Ιουλ 2024 · The atmosphere surrounds the Earth and holds the air we breathe; it protects us from outer space; and holds moisture (clouds), gases, and tiny particles. In short, the atmosphere is the protective bubble in which we live.
13 Μαΐ 2024 · That is essentially what the Earth’s atmosphere is like: layers upon layers of gas surrounding the Earth, working to protect the planet. We asked Rei Ueyama , an atmospheric scientist at NASA Ames Research Center, to explain a little bit more about the function and importance of our atmosphere.
19 Οκτ 2023 · Earth’s atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.
