Age of a tree is determined using radio-isotope of [EAMCET (Engg.) 199 – McqOptions

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1.	Age of a tree is determined using radio-isotope of [EAMCET (Engg.) 1995]
A.	Carbon
B.	Cobalt
C.	Iodine
D.	Phosphorus
Answer» B. Cobalt

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