Smoke alarms, which are also called smoke detectors, work by constantly checking the air for traces of the gasses and smoke particles produced by a fire.There are two types of smoke alarms-ionization alarms and photoelectric alarms.moke alarms, which are also called smoke detectors, work by constantly checking the air for traces of the gasses and smoke particles produced by a fire.
Q: the BEST way to begin the research process. A: The BEST way to begin the research process is to select a topic that interests you. Expert answered|andrewpallarca|Points 37581|. Log in to see link for more information.
One way to begin your search for a career is to think about the things you are good at doing and then find careers that match your skills. In the list below, select all of the things you are good at and enjoy doing. Then click the Show Me the Results button to see some careers that may interest you. Start Over.