Seudónimo Seudónimo
  • 29-11-2016
  • Biology
contestada

what are index fossils and how are they used to find the age of a sedimentary rock

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jonathant3194
jonathant3194 jonathant3194
  • 01-12-2016
index fossils are rocks that have the imprint of a dead animal or plant.I think.
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