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7Sci_Ch 2 Sec3
Chapter 2, Section 3 Atmosphere
Question | Answer |
---|---|
What causes the movement of air caused by differences in air pressure? | wind |
What is air warmer and less dense than surrounding air at the equator? | the equator receives more solar energy |
Where does cold polar air flow after high pressure areas are created around the poles? | the equator |
What is created around the poles as cold air sinks? | high pressure areas |
What happens to air that is colder and denser than surrounding air? | it sinks |
What are large, circular patterns of air movement called? | convection cells |
What are pressure belts? | bands of high pressure and low pressure found every 30 degrees of latitude |
What is Corioles Effect? | when the paths of winds and ocean currents seem to curve because of the Earth's rotation |
What is the horse latitudes? | the area in which sinking air creates high pressure and weak winds at about 30 degrees north and 30 degrees south latitude |
Where are most deserts located? | the horse latitudes |
What are the westerlies? | wind belts that extend between 30 degrees and 60 degrees latitude in both hemispheres |
What are polar easterlies? | wind formed as cold, sinking air moves from the poles to 60 degrees north and 60 degrees south latitude |
What are doldrums? | the area around the equator where trade winds meet |
What are trade winds? | winds that blow from 30 degrees latitude in both hemispheres almost to the equator |