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Yes. The two terms are used pretty much interchangeably.

Both are non-specific terms, but air usually refers to atmosphere that is breathable to us, while atmosphere is any pressurized gas environment. Mars and Venus both have atmospheres, but you wouldn't want to breathe the stuff. Both planets have mostly carbon dioxide for atmosphere, so you'd die breathing them. And that's setting aside the fact that the atmospheric pressure on Venus is almost 100 times that on earth, and on Mars, the atmospheric pressure is only about 1/100 that of that here.

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15y ago
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14y ago

A definition of air or atmosphere could be: A gas or mixture of gases that persists in a stable layer enclosing a planet or satellite.

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14y ago

Not as much "a" layer of air as it is "the" layer of air. The atmosphere is the four major regions of air: Troposphere, Stratosphere, Mesosphere, Thermosphere

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Q: Is the atmosphere a layer of air?
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