Polar air is denser because it is colder.
Air becomes more or less dense relative to its temperature. Cold air is denser than warm. Since the equatorial region is tropical, the air will be warmer and less dense.
because hot air is less dense than cold air therefore when air becomes less dense its air pressure decreases.See the link for more information.http://www.mhhe.com/earthsci/geology/mcc…
In the mesosphere, the air is more dense.
Humid air is more dense.
its has more pressure
air is more dense than helium
Lead is more dense than air.
Warm air is less dense than cool air masses because of their density levels.
No it is more dense than hot air
Cold air is more dense than warm air.
Saturated air is more dense.
The Earth tilts on its axis which causes major differences to the amount of light that reaches the poles and extremes of Northern and Southern latitudes. The equatorial region is virtually unaffected by the seasonal tilt of the Earth and as such receives a large amount of light all year round.Due to this the polar regions are significantly colder than the equatorial regions.When a substance is heated the particles of that substance receive more kinetic energy; move more rapidly; move further apart; and therefore expand. When substances expand like this there are less particles per unit area and therefore the substance becomes less dense.A less dense substance will float on top of a more dense substance.Air is heated at equatorial regions and therefore rises due to decreased density.Air is cooled at polar regions and therefore sinks due to increased density.