To date a rock thought to be many millions of years old,you should not use the decay of
A)uranium to lead.
B)potassium to argon.
C)carbon-14.

Question

Quizplus · Accepted Answer

Carbon-14 dating is effective for dating organic materials up to about 50,000 years old, making it unsuitable for dating rocks thought to be millions of years old. Uranium-lead and potassium-argon dating are appropriate for much older samples.

To Date a Rock Thought to Be Many Millions of Years