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← ScienceWhich risk increases when spent nuclear fuel rods experience cladding breach?
A)Noble gas release accelerates✓
B)Neutron moderation decreases sharply
C)Fission product half-lives shorten
D)Fuel density increases substantially
💡 Explanation
Cladding breach exposes the fuel to the coolant, driving increased noble gas release via diffusion because the matrix barrier is lost; therefore fission products are released at a higher rate, rather than changing neutron moderation, because no heavy water exits.
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