Le atmosphera terrestre es le massa de gases que circumfere le Terra.
Le atmosphera consiste de moleculas chimic de nitrogeno (78,09 %), oxygeno (20,95 %), argon (0,93 %), dioxydo de carbon (0,0333 %) e alicun gases nobile (helium, neon, krypton, xenon); illo anque contine methano, hydrogeno, oxydo e suboxydo de nitrogeno, ozono e altere gases. Le mixtura es homogenee usque circa 80 km de altitude, excepte pro un quantitate variabile de vapor de aqua; iste mixtura de gases es nominate aere.
Atmosphera terrestre |
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instantia de: geographic envelope[*], geosphere[*], atmosphere of a planet[*] |
parte de: Terra, natural environment[*] |
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Commons: Earth's atmosphere |
Le circulation del aere e le condensation del vapor de aqua dependente del conditiones thermodynamic del atmosphera causa le formation de nubes e le variation de insolation del radios solar.
Le massa del atmosphera terrestre es approximamente 5,1015 tonnes.
Le medie pression atmospheric presso le mar es 1013,25 hectopascal (Conditiones normal de temperatura e pression). A nivellos plus alte, le pression atmospheric diminue.
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