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The top documents tagged [youngestlower layers]
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youngestlower layers
Earth’s History
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1 Earth’s History Planet Earth is approximately 4.6 billion years old –Rocks of the crust provide clues to Earth’s past By analyzing these clues we can.
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1 Earth’s History. 2 Planet Earth is approximately 4.5 X 10 9 years old –Rocks of the crust provide clues to Earth’s past By analyzing these clues we.
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