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German Type XXI U-boats used this kind of propulsion system.

  • Atomic
  • Bio-diesel
  • Diesel-electric
  • Heated hydrogen peroxide

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HistoryNet Staff (10/4/2024) Daily Quiz for April 20, 2019. HistoryNet Retrieved from https://www.historynet.com/quiz190420/.
"Daily Quiz for April 20, 2019."HistoryNet Staff - 10/4/2024, https://www.historynet.com/quiz190420/
HistoryNet Staff 4/20/2019 Daily Quiz for April 20, 2019., viewed 10/4/2024,<https://www.historynet.com/quiz190420/>
HistoryNet Staff - Daily Quiz for April 20, 2019. [Internet]. [Accessed 10/4/2024]. Available from: https://www.historynet.com/quiz190420/
HistoryNet Staff. "Daily Quiz for April 20, 2019." HistoryNet Staff - Accessed 10/4/2024. https://www.historynet.com/quiz190420/
"Daily Quiz for April 20, 2019." HistoryNet Staff [Online]. Available: https://www.historynet.com/quiz190420/. [Accessed: 10/4/2024]