Earth

What is the name of the single continent that existed early in Earth's history?

More Questions from Earth
What is the study of plant life called?
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Most minerals may be identified using the following methods except which?
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What is the estimate of the true age of a mineral or rock called?
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Which scale is used to describe a mineral's hardness?
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Hanging valleys may occur in all of the following ways except?
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What did ancient farmers probably use to tell the passing of seasons?
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What family are both poison oak and poison ivy part of?
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Mercurial barometers measure what?
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