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March 6, 2015

March 6, 2015

Posted by **Ana** on Thursday, March 11, 2010 at 6:46pm.

how old is a fossil remain that has lost 95% of its carbon-14

- Algebra 2 -
**Anonymous**, Thursday, April 14, 2011 at 9:32pmfreifdofjfjd

- Algebra 2 -
**Anonymous**, Sunday, November 27, 2011 at 7:33amabout 25000

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