Equally As seen light consists of various colours that develop into clear inside a rainbow, the UV radiation spectrum is divided into three regions termed UVA, UVB and UVC. As sunlight passes from the environment, all UVC and many UVB is absorbed by ozone, water vapour, oxygen and carbon dioxide. https://andersonjwmua.weblogco.com/35959900/fascination-about-uv-printer-9060