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6 Cards in this Set
- Front
- Back
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Why are the tropics warm and the poles cold?
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Regions at or near the equator receive much more sunlight per unit area and thus much more energy in the form of heat-than regions that are closer to the poles.
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Why are the Tropics wet?
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Because of hadley cells-areas along the equator receive the most moisture, while locations 30 degrees north and south of the equator are among the driest on the planet.
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What is a Hadley cell?
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A major cycle in global air circulation.
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Why are there seasons?
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Because Earth tilts on its axis.
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How do mountains and oceans effect the climate?
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The presense of mountain ranges tends to produce extremes in precipitation, the presence of an ocean has a moderating influence on temperature.
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How do mountain ranges create rain shadows?
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When moisture-laden air rises over a mountain range, the air cools enough to condense water vapor. As a result, moisture falls to the ground as precipitation. On the other side of the mountain, little water is left to provide precipitation.
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