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

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.

To see a general view of a microscope slide, use low power. to see a more specific and detailed view, use high power.