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       #Post#: 2096--------------------------------------------------
       Daily question-81
   DIR By: Shiva
       Date: February 11, 2013, 2:34 pm
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       Which of the following carbon isotopes is used to determine the
       age of the objects of the plant or animal origin?
       (a) C-12
       (b) C-13
       (c) C-14
       (d) None of these
       #Post#: 2099--------------------------------------------------
       Re: Daily question-81
   DIR By: Chemist@
       Date: February 12, 2013, 3:05 pm
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       (c) C-14
       #Post#: 2101--------------------------------------------------
       Re: Daily question-81
   DIR By: Shiva
       Date: February 12, 2013, 10:43 pm
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       Yeah :-)
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