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4 votes
What advance was necessary before electricity could be widely used?

the transportation revolution

the power plant

Morse code

the telegraph

2 Answers

3 votes
It's defiantly the telegraph. This is because they had no phones or communications tools to use, but the telegraph widely changed that. The transportation revolution came after electricity.
User CagedMantis
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3 votes
the power plant was the advancment that made electricity more viable

User Bbayles
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