Respuesta :

Answer:

Cell phones and lighting

Explanation:

Cell phones allow everyone to be connected with one another,

and lighting allows people to work more then eight hours a day.  Before electricity people were only able to work while the sun was out.  It also allows us to produce goods faster and of higher quality.

Answer:

invention of street cars, made travel cheaper and easier and invention of many appliances, shorter work week, had more leisure time.

Explanation:

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