debbieruto39 debbieruto39
  • 19-09-2022
  • Physics
contestada

explain how a fire alarm work​

Respuesta :

casiodoms casiodoms
  • 19-09-2022

Answer:

Smoke alarms detect fires by sensing small particles in the air using a couple of different kinds of technologies. Once they detect those particles above a certain threshold, they signal the alarm to sound so that you and your family can get to safety and call 911. Smoke alarms save lives.

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