Answers SS4 PGCPS EARTH SPACE OC SUMMER 2027 - 794243 Rocks and the Rock Cycle — Cumulative examQuestion 7

7

RCMultiple Choice

Rocks and the Rock Cycle — Cumulative exam

Question 7 • SS4: PGCPS EARTH SPACE OC (SUMMER 2027) - 794243

Which statement describes potassium-argon dating?

Answer

A

Potassium-40 decays into argon gas over time.

B

Argon breaks down into other elements and compounds.

C

Potassium-40 becomes stable when trapped in rocks.

D

Argon is unstable and will decay into potassium-40 over time.

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