Atmosphere of 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.
Read Full Wiki- nounThe substance constituting earth's atmosphere, particularly:
- noun(usually with the) The apparently open space above the ground which this substance fills, formerly thought to be limited by the firmament but now considered to be surrounded by the near vacuum of outer space.
- verbTo bring (something) into contact with the air, so as to freshen or dry it.
- verbTo let fresh air into a room or a building, to ventilate.
- Air
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