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!!!HELP!!!
Why did the development of time zones make train schedules more reliable?

A)Time zones set the entire country to the same time.

B)Time zones measured time locally instead of country-wide.

C)Time zones made sure that each state was in only one zone.

D)Time zones created a standard of time that all trains followed.

Respuesta :

The answer is: D)Time zones created a standard of time that all trains followed.

Due to the development of railroad technology, trains could cover the distance between areas that have different time zones. Since a lot of the customers use it to commute for works, it is very important for standardized time to be created for all trains

Answer:

time zones created a standard of time that all trains followed

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