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The top documents tagged [years old rocks]
The world formed from Stardust We formed from the world We all came from Rocks So now Mrs Stanford is calling us Nuclear waste and Rock-heads
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1 Earths History. 2 Planet Earth is approximately 4.5 X 10 9 years old –Rocks of the crust provide clues to Earths past By analyzing these clues we can
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Top ten destinations you need to visit in usa before you turn 30
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Ch 21: Fossils and the Rock Record According to the scientific community How old is the Earth? About 4.6 billion years old
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