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← ScienceWhich outcome occurs when a large quantity of Iodine-131 leaks from a damaged nuclear reactor's cooling system?
A)Increased risk of thyroid cancer✓
B)Widespread plant life mutations
C)Rapid corrosion of steel structures
D)Immediate explosive chain reaction
💡 Explanation
Iodine-131's beta decay concentrates in the thyroid; therefore, the increased risk of thyroid cancer results. This occurs because radioactive iodine replaces stable iodine in thyroid cells via bioaccumulation, rather than causing immediate widespread mutations or corrosion.
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