So be sure to wear sunscreen to protect yourself. But… what exactly are you protecting yourself against?
C. Ultraviolet (UV) Radiation
There are many different types of radiation. For example, visible light is everything you see; all the colors that are you are able to see. One step above visible light is ultraviolet radiation. There are 3 major types of ultraviolet radiation: UVA, UVB and UVC. The atmosphere usually absorbs UVC before it reaches the Earth. The ozone layer serves as a natural shield to many of the sun’s rays, however, now that the ozone layer is slowly depleting, more and more UV radiation can get through. UVB partially reaches the Earth, and UVA completely reaches the Earth. What does UV Index mean?
The ultraviolet index or UV Index is an international standard measurement of the strength of ultraviolet (UV) radiation from the sun at a particular place and time. Remind them that this number is always used by meteorologists in their weather