Published on January 16, 2012
It's An Old World After All
Learn about three methods scientists have used to determine the age of the Earth: tree rings, lake varves, and radiometric dating.
Learn about three methods scientists have used to determine the age of the Earth: tree rings, lake varves, and radiometric dating.
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Learn about three methods scientists have used to determine the age of the Earth: tree rings, lake varves, and radiometric dating.
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