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Physics 11 Online
OpenStudy (anonymous):

WHAT ARE THE ADVANTAGES OF SMOKE ALARMS??

OpenStudy (anonymous):

YOU DON'T DIE FROM BREATHING IN SMOKE!!

OpenStudy (unklerhaukus):

unsuspicious source of radioactive Americium-241; alpha emitter

OpenStudy (anonymous):

The wake up up in case of fire because when you are a sleep your sense of smell does not work.

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