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← ScienceWhich outcome results from enrichment of uranium isotopes?
A)Increased probability of sustained fission✓
B)Decreased neutron absorption cross-section
C)Reduced production of helium byproduct
D)Enhanced moderator effectiveness in reactor
💡 Explanation
Uranium enrichment increases the concentration of U-235, raising the probability of induced fission because neutron capture leads to nuclear instability and immediate splitting of the atom generating chain reactions; therefore, sustained fission is likelier, rather than cross-section lessening or helium reduction under normal fission
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