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.
First task of researcher is to ask an explicit question. A. Next is designing a way to gather the relevant information â in sexuality research, most commonly used methods are surveys, case studies & experimental research. 1. Less common is direct observation; used more in sexual research clinics, but also in the work of Masters & Johnson.