Earth

What is another name for permanently frozen ground?

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What reef is the largest living structure on Earth?
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A "gustnado" is a gust from what?
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What theory proposes that Earth is made of plates that move?
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A weather proverb says: "Clear moon," followed by what?
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What do we call the dependable winds that rush toward the equator from the north and south?
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What instrument do you use to measure wind speed?
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How much salt is in every gallon of seawater?
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Which of these terms means "protecting and using a resource wisely"?
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