sɪᴍᴘʟᴇ ᴅᴇғɪɴɪᴛɪᴏɴ ᴏғ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ?¿
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the envelope of gases surrounding the earth or another planet.
Atmosphere refers to the gases surrounding a star or planetary body held in place by gravity. ... The composition of the Earth's atmosphere is about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, with water vapor, carbon dioxide, and other gases.
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An atmosphere is a blanket of gases that surrounds Earth. ... It is held near the surface of the planet by Earth's gravitational attraction. Argon, oxygen and nitrogen from the three main constitutions of the atmosphere.
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