The radioactive age of a rock is actually the length of time since the material in that rock was last ____.
A) formed
B) erupted
C) concentrated
D) melted
E) condensed

Name: The radioactive age of a rock is actually the length of time since the material in that rock was last ____. A) formed B) erupted C) concentrated D) melted E) condensed
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Question

Quizplus · Accepted Answer

The radioactive age of a rock is determined by the time since the rock was last melted, as this resets the isotopic clock used for radiometric dating.

The Radioactive Age of a Rock Is Actually the Length