4. Radiometric dating is not useful to directly determine the age of which type of rock?

A. a sedimentary rock
B. a mineral-rich rock
C. a petrified rock
D. an igneous rock



Answer :

Final answer:

Sedimentary rocks are more effective for determining relative rock ages due to their fossil clues.


Explanation:

Sedimentary rocks are more useful than metamorphic or igneous rocks in establishing the relative ages of rock because they contain clues like fossils that provide insights into their formation time. In contrast, metamorphic rocks can reset the clocks, and igneous rocks may not contain the necessary markers for dating.


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