properties of air just one
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Air is a mixture of gases consisting of approximately 4/5 Nitrogen and 1/5 Oxygen. Like all matter, air has weight and takes up space. It can also be compressed, unlike solids and liquids. These three propertieswill be studied in this investigation.
06adityaupadhyay:
it is homogenous mixture of several gases
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air has weight and it occupies space
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