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MMLU-Pro / 10311 / The dirt floor of theShanidarCave in the northern part of Iraq has been…

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question

The dirt floor of theShanidarCave in the northern part of Iraq has been examined. Below the layer of soil that contained arrowheads and bone awls was a layer of soil that yielded flint tools and pieces of charcoal. When the charcoal was examined it was discovered that in 1 kg of carbon, approximately 9.4 × 10^2 carbon\Elzbar14 nuclei decayed each second. It is known that in 1 kg of carbon from living material, 1.5 × 10^4 disintegrations of carbon\Elzbar14 occur each second. Use these data to calculate when people of the stone age culture occupied the cave.

category

physics

options

  1. 6.5 × 10^4 years ago
  2. 4.6 × 10^4 years ago
  3. 9.4 × 10^2 years ago
  4. 8.8 × 10^3 years ago
  5. 5730 years ago
  6. 2.3 × 10^4 years ago
  7. 11,460 years ago
  8. 7.3 × 10^3 years ago
  9. 1.5 × 10^4 years ago
  10. 3.0 × 10^4 years ago

src

stemez-Physics

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