English
bchasity70
5

Which scientific or technological advance did not take place in the first fifteen years of the twentieth century? a) Albert Einstein's theory of relativity b) wireless communication across the Atlantic c) the creation of the internet d) the invention of the airplane e) the mass production of cars

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(1) Answers
CottonCandy17

It's (c). I would say (b), too, but Morse code can be considered wireless if flashes are used to send messages.

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