Which outcome occurs when potassium-40, present within rocks, undergoes radioactive decay?

💡 Explanation

Argon-40 accumulates via electron capture and beta-plus decay. Argon is trapped because it's a gas and can't bond chemically with the rock. Therefore, an accumulation of Argon-40 occurs, rather than changes in geothermal activity, uranium amounts, or potassium isotopes.

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