All nuclear reactions generate radioactive waste. which answer correctly lists nuclear reactions beginning with the cleanest reaction?

D

Explanation:

Radioactive decay is the cleanest because it is natural and stochastic. Therefore, because these radioactive elements will not occur in pure forms, the rate at which it produces radioactive particles is less compared to fusion and fission. Fusion and fission have to be manmade here on earth. Fusion, which combines lighter atoms into heavier atoms releases much energy but fewer radioactive particles compared to fission. Nuclear fission, the splitting of heavier elements to lighter elements, produces the most radioactive waste.

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