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Chapter 25 Slides Sections 1-3

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• Radiocarbon dating can be used to date fossils<br />

up to 75,000 years old<br />

• For older fossils, some isotopes can be used<br />

to date sedimentary rock layers above and<br />

below the fossil<br />

AP Biology<br />

© 2011 Pearson Education, Inc.

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