kellyalegria006
kellyalegria006 kellyalegria006
  • 23-06-2020
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why was the electric traffic signal invented?

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Noahbrendan
Noahbrendan Noahbrendan
  • 23-06-2020

Answer: to prevent accidents from happening

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bealramirez bealramirez
  • 23-06-2020
To prevent auto accidents from happening and to save gas because they were originally run by gas
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