quan2002 quan2002

10-01-2017
Biology

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What helped scientist recognize that the earth was a million years old

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msacoustic msacoustic

10-01-2017

Clues such as fossils such as bones, footprints, tar, etc, preserved underground helped inform scientists. You can also count how old a tree is when you cut it open and there are some alive for thousands of years so that is a possible way.

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