Earth

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

More Questions from Earth
What is another name for fossilized resin?
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What submersible helped to discover the wreckage of the Titanic in 1986?
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Most minerals may be identified using the following methods except which?
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What is America's federal weather agency called?
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What is another name for the "Humboldt Current"?
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Which of these is a spiral storm that can be many miles wide?
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What is the Hawaiian name for smooth-flowing basaltic lava, often appearing twisted and rope-like?
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If an organic material is converted into stone, it becomes what?
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