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The division of the United States into standard time zones was first done by

which group?
A. The state governmente
B. The United Nations
C. The railroads
D. The scientific community

2 Answers

1 vote
Railroads aka C hope it helps
answered
User Matt Davies
by
8.5k points
4 votes
Railroads my friend :)
answered
User Rasheena
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8.0k points

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