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Reaper534

  • 3 years ago

An isotope of carbon that is radioactive is _________. A. carbon-12 B. carbon-13 C. carbon-14 D. carbon-15

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  1. Bassthoven
    • 3 years ago
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    C

  2. Reaper534
    • 3 years ago
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    ok

  3. Reaper534
    • 3 years ago
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    By applying the law of superposition, _______________ dates can be determined. A. relative B. absolute C. radiometric D. isotope

  4. Bassthoven
    • 3 years ago
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    A

  5. Reaper534
    • 3 years ago
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    Fishes were first abundant during the ... A. Precambrian B. Paleozoic C. Mesozoic D. Cenozoic i out c it was wrong

  6. Reaper534
    • 3 years ago
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    put*

  7. Bassthoven
    • 3 years ago
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    B or D

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