Atmosphere of Earth
Gas layer surrounding Earth
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Interest in “Atmosphere of Earth” spiked on Wikipedia on 2026-02-25.
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Key Takeaways
- The atmosphere of Earth consists of a layer of mixed gas that is retained by gravity, surrounding the Earth's surface.
- The atmosphere serves as a protective buffer between the Earth's surface and outer space.
- The atmosphere redistributes heat and moisture among different regions via air currents, and provides the chemical and climate conditions that allow life to exist and evolve on Earth.
The atmosphere of Earth consists of a layer of mixed gas that is retained by gravity, surrounding the Earth's surface. It contains variable quantities of suspended aerosols and particulates that create weather features such as clouds and hazes. The atmosphere serves as a protective buffer between the Earth's surface and outer space. It shields the surface from most meteoroids and ultraviolet solar radiation, reduces diurnal temperature variation – the temperature extremes between day and night, and keeps it warm through heat retention via the greenhouse effect. The atmosphere redistributes heat and moisture among different regions via air currents, and provides the chemical and climate conditions that allow life to exist and evolve on Earth.
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