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Antarctica's Climate: (Why is the Antarctic so cold? (The angle of the…
Antarctica's Climate:
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The precipitation in Antarctica is mainly snow. In coastal regions about 200 mm can fall annually. In mountainous regions and on the East Antarctica plateau the amount is less than 50 mm annually. This is not as high as other desert regions because it is so cold, so the snow gradually builds up year after year. There are also strong winds, with recordings of up to 200 mph being made.
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Earths axis:
The main reason why there is not equal distribution of heat over the surface of the earth lies in the fact that the earth is a sphere. The equator points directly at the sun but the poles are angled away so sunlight strikes the surface at an oblique angle.
From an polar earthbound vantage point the sun appears lower in the sky and its rays less warming. If the earth wasn’t tilted, the poles themselves would receive no sunlight at all – the sun would appear to merely travel around the horizon but never rising above it.
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