Question

whai is mean by atmosphere​

Answer 1

Answer:

the envelope of gases surrounding the earth or another planet...

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Answer 2

Answer:

We live at the bottom of an invisible ocean called the atmosphere, a layer of gases surrounding our planet. Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions. Water vapor and dust are also part of Earth's atmosphere.