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Which phrase describes air density? increases as altitude increases equals mass divided by volume pushes...

Which phrase describes air density?
increases as altitude increases
equals mass divided by volume
pushes molecules in one direction
exerts less pressure as it increases

Answer

The phrase that describes air density is:

equals mass divided by volume

Air density is defined as the mass of air per unit volume. It can be calculated using the formula:

Density = Mass / Volume

As air density changes, it is influenced by factors such as temperature, pressure, and humidity, but the fundamental definition remains linked to the relationship between mass and volume.

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