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Environmental Science & Technology Quiz
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What Enrico Fermi invented?
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A
Nuclear reactor
💡 Explanation:
Enrico Fermi built the first nuclear reactor (Chicago Pile-1) in 1942, achieving the first controlled nuclear chain reaction. While he worked on particle accelerators, the cyclotron was invented by Lawrence, the betatron by Kerst, and X-ray machines by Roentgen.