Why is large-scale nuclear fission a rare phenomenon on Earth? A. There isn’t enough energy to start a chain reaction in nature. B. There are no naturally occurring atoms that can undergo fission left on Earth. C. Atoms that undergo fission aren’t concentrated enough to sustain a chain reaction. D. Atoms that undergo fission tend to decay more slowly on Earth than in stars.
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Why is large-scale nuclear fission a rare phenomenon on Earth? A. There isn’t enough energy to start...
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