BIOLOGY
ON: RACE 02
The ratio of radioactive and non radioactive
form of an element in a sample of rock is 1:15
Estimate the age of rock if the half life
radioactive element is 3 billion years.
(1) 3 billion years (2) 6 billion years
(3) 1.5 billion years (4) 12 billion yea
The organism And De
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Answer:
4 _twelve years................
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