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1-1 What is air? What is normal air?
The atmosphere around Earth is called air, normally defined as 0.1MPa pressure, 20℃, 36% humidity. Moisture in normal air reduces its volume when separated.
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Answer:
The atmosphere around Earth is called air, normally defined as 0.1MPa pressure, 20℃, 36% humidity. Moisture in normal air reduces its volume when separated.
