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https://www.livescience.com/planet-earth/how-do-we-know-how-old-earth-is
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How do we know how old Earth is? - Livescience.com
4/15/23 at 12:00pm
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Live Science
Author
Ethan Freedman
36 words
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By measuring radioactive elements in rocks from Earth and other parts of the solar system, scientists can develop a timeline of our planet's early years.
Science
Earth
Livescience.com
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