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Which outcome accelerates plutonium-239's breakdown in nuclear waste repositories?

A)Elevated temperatures promote alpha decay
B)Neutron bombardment induces beta decay
C)Increased pressure inhibits electron capture
D)Chemical reactions accelerate positron emission

💡 Explanation

Elevated temperature accelerates alpha decay because increased thermal energy enhances quantum tunneling through the potential barrier, therefore the rate of fission increases rather than beta decay which usually requires a different trigger.

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