Earth

How many days a year is the sun invisible at the North Pole?

More Questions from Earth
What is the tendency of Earth's rotation to turn winds called?
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At what point would one be standing if the trees were stunted?
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What is the boundary between two air masses called?
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What soft brown coal that has lost all of its moisture called?
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In terms of weather, what is the land corridor that stretches from Texas to North Dakota called?
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How many geysers is Yellowstone National Park home to?
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What is the driest U.S. state?
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What was TIROS I, launched on April 1, 1960?
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