GDss
May 24, 2009, 12:43 PM
Hi I have one important question n homework.
Which radioactive isotope is better to date a fossil 20000 years old,6 billion years old and 20 billion years old?please help me a.s.a.p:confused:
Your help is really appreciated.thank youu
Xx
Which radioactive isotope is better to date a fossil 20000 years old,6 billion years old and 20 billion years old?please help me a.s.a.p:confused:
Your help is really appreciated.thank youu
Xx