Question

1 Name two important properties of air.​

Answer 1

Answer:

1. Air has weight. Because the weight of air varies with pressure and temperature it has to be defined accurately.

2. Air usually contains some water vapor.

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Answer 2

Answer:

Earth's atmosphere is composed of air.

1. Air is a mixture of gases, 78% nitrogen and 21% oxygen with traces of water vapor, carbon dioxide, argon, and various other component

2.Air has temperature. Like most things around us, air expands when it gets hot and contracts when it gets cold. Temperature has an effect on Volume, and that Volume has an effect on Pressure.

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