Question

Raj takes a meteorology class and learns about the effects of air density on the weather. What affects the density of air? Explain.

Answer 1

Temperature, pressure, and moisture/humidity are all factors to consider.

Warm air has a lower density and rises/becomes buoyant.

The air is less dense at higher elevations above sea level. To bring the same amount of oxygen into the lungs when running at high altitudes, you'll need to take more deep breaths.

Humidity is less dense at higher temperatures and pressures. The weight of water molecules is less than that of nitrogen and oxygen molecules. To get more moisture into the same volume of air, some of the heavier nitrogen and oxygen must be displaced.

Step-by-step explanation:

Answer 2

Temperature, pressure, and moisture/humidity

Warm air is less dense and will rise/become buoyant

Higher elevations above sea level the air is less dense. Running at high altitudes requires more deep breathes to get same oxygen content into lungs.

Higher humidity (temp. And pressure held constant) is less dense. Water molecules weigh less than nitrogen and oxygen molecules. To get more moisture into same volume of air requires displacement of some of the heavier nitrogen and oxygen.