define atmosphere ????????
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the gaseous envelope of a celestial body (such as a planet) b : the whole mass of air surrounding the earth. 2 : the air of a locality the stuffy atmosphere of the waiting room. 3 : a surrounding influence or environment an atmosphere of hostility
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An atmosphere is the layers of gases surrounding a planet or other celestial body. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.
The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth's gravitational attraction. Without the atmosphere there could be no life on Earth. The atmosphere keeps the climate on Earth moderate compared to that of other planets.
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