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.
FirstSearch is another way to use the Internet for research. It allows online searching of about 50 major indexes and can be reached directly through one's UNIX account at CSUN. As a research tool, FirstSearch is a starting point of gaining information on specific topics in the published journal literature.