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SSSSS [86.1K]
3 years ago
9

Why was the electric traffic signal invented?

History
2 answers:
Alexeev081 [22]3 years ago
7 0

Answer: to prevent accidents from happening

Explanation:

sergejj [24]3 years ago
6 0
To prevent auto accidents from happening and to save gas because they were originally run by gas
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