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28 May, 00:39

Which of the following inventions was not powered by electricity?

a. telegraph

b. telephone

c. internal combustion engine

d. lightbulb

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Answers (1)
  1. 28 May, 01:11
    0
    The answer is A. Telegraph it was the invention by Samuel Morse, but later Gugliemo Marconi Mady the wireless telegraph, which didnt need electricity.
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