| atmosphere |
the envelope of gases, aerosols, and other materials that surrounds Earth and is held close by gravity. The gases predominantly by nitrogen, oxygen, argon, and carbon dioxide and include much smaller percentages of helium, methane, and hydrogen.
출처: nde.learningoptions.net/standards/standss/geocont/...
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| atmosphere |
The envelope of air surrounding the earth. Most weather events are confined to the troposphere, the lower 10 km of the atmosphere.
출처: www.climatechangecentral.com/default.asp
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