Other Sciences

8th

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Earth History

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16 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    All are types of fossils EXCEPT
    Mineral Replacement
    Bone neutralization
    Carbon Film
    Cast and Mold
  • 2. Multiple Choice
    30 seconds
    1 pt
    The half-life Carbon-14 is 5,730 years. How much parent material is left after 5,730 years?
    75%
    50%
  • 3. Multiple Choice
    30 seconds
    1 pt
    The absolute age of an igneous rock can best be determined by ...
    comparing radioactive isotopes
    comparing crystal sizes
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