The Chernobyl disaster was significantly more devastating than the Three Mile Island incident, resulting in severe health impacts and environmental destruction. In contrast, Three Mile Island had long-term safety implications but no immediate harm. The most accurate completion of the sentence is that Chernobyl was 'more devastating.' ;
The Chernobyl disaster was significantly more devastating than the Three Mile Island incident due to its severe health impacts and widespread environmental contamination. In comparison, Three Mile Island's accident involved a partial meltdown with no immediate deaths or significant radiation release. Therefore, the best choice is 'more devastating.'
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