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
Acids and bases cause most chemical burns. Burns caused by chemicals can happen at school, work, or any place where you handle chemical materials. Some of the most common products that cause chemical burns are: car battery acid.