Why Is Potassium-Argon Dating Least Useful for Sedimentary Rock

question 6

Multiple Choice

Why is potassium-argon dating least useful for sedimentary rock?

• A) Sedimentary rocks are too rare.
• B) Sedimentary rocks cannot be dated.
• C) Metamorphic and igneous rocks outnumber sedimentary rocks.
• D) Sedimentary rocks don't often contain potassium.

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