It keeps stuff alive
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An atmosphere helps regulate the planet's temperature by trapping heat from the sun and reducing temperature extremes between day and night. It also shields the planet from harmful radiation and impacts from space debris. Additionally, it contains the gases necessary for life to exist and helps distribute heat and moisture around the planet through weather patterns.
Ceres is not a planet; it is a dwarf planet. It does not have an atmosphere.
Earth is the only known planet with an oxygenated atmosphere.
The gaseous layer surrounding a planet is Atmosphere. Each planet has different atmospheric content.
The main gas in the atmosphere of the largest planet, Jupiter, is hydrogen. It makes up about 75% of the planet's atmosphere, with helium being the second most abundant gas.
No. Mercury essentially has no atmosphere. Earth is the only planet with an atmosphere that humans can breathe.