Each of those groups is called a class. Each of those classes is of a certain width and this is referred to as the Class Interval or Class Size. This class interval is very important when it comes to drawing Histograms and Frequency diagrams.
Burns can come from anything hot. Microwaves, the sun, (sometimes the refrigerator,) a TV, computer, or handheld game that was turned on for a long time, active volcanoes, la â¦ va, fire, friction, steam, hot water, etc., can cause burns. Or cold. Burns are caused by rapid changes in temperature
Chemicals cause from 2 to 11% of all burns and contribute to as many as 30% of burn-related deaths. Chemical burns can be caused by over 25,000 substances, most of which are either a strong base (55%) or a strong acid (26%). Most chemical burn deaths are secondary to ingestion.