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What is meant by carbon dating method?

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(1) Carbon dating method is technique used for determining the age of fossils.

(2) After the death of the organisms, their consumption of carbon stops. But right from that moment the decaying process of C-14 occurs continuously.

(3) This results in change in the ratio between C-14 and C-12. C-12 is not radioactive as C-14.

(4) Thus the time passed since the death of a plant or animal is calculated by measuring the radioactivity of C-14 and ratio of C-14 to C-12 present in their body.

(5) The points noted during carbon dating are:

  • The period after the organism has been dead.
  • The activity of C-14 in the dead organism.
  • Ratio between C-14 and C-12.

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