miacrawford2006 miacrawford2006

21-04-2020
Biology

contestada

Help me pls ASAP !!

If it takes 700 million years for half of your the uranium in a rock to decay into lead how old is a fossil that is:

a.) 50% uranium and 50% lead

b.) 25% uranium and 75% lead

Respuesta :

CheezyCat CheezyCat

22-04-2020

Answer:

The answer is a).I think so...Tell me if I'm wrong

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