[DOC] [TLE] Ultraviolet - Wikipedia [PAR] Ultraviolet (UV) is an electromagnetic radiation with a wavelength from 10 nm (30 
PHz) to 400 ... Small birds have a fourth color receptor for ultraviolet rays; this 
gives birds "true" UV vision. .... The Sun emits ultraviolet radiation at all 
wavelengths, including the extreme ultraviolet where it crosses into X-rays at 10 
nm. [DOC] [TLE] UVA & UVB - SkinCancer.org [PAR] May 24, 2013 ... The center of this confusion is the sun's ultraviolet A (long-wave) and ultraviolet B 
(shortwave) rays. Our understanding of exactly what kinds of... [DOC] [TLE] What is ultraviolet (UV) radiation? - American Cancer Society [PAR] Mar 20, 2015 ... Exposure to ultraviolet (UV) radiation is a major risk factor for most skin cancers. 
Sunlight is the main source of UV rays. Tanning lamps and... [DOC] [TLE] Ultraviolet Waves - Mission:Science [PAR] Ultraviolet (UV) light has shorter wavelengths than visible light. ... UV-C rays are 
the most harmful and are almost completely absorbed by our atmosphere. UV-B... [DOC] [TLE] What Is Ultraviolet Light? - Live Science [PAR] Mar 31, 2015 ... Ultraviolet light is a type of electromagnetic radiation, as are radio waves, infrared 
radiation, X-rays and gamma-rays. UV light, which comes... [DOC] [TLE] Sun Science - COOLA Suncare [PAR] The sunlight that reaches us is made up of two types of harmful rays: long wave 
ultraviolet A (UVA) and short wave ultraviolet B (UVB). UVA rays penetrate deep
... [DOC] [TLE] Find Your Local UV Index | Coppertone | Coppertone [PAR] The UV Index is issued daily to advise you on the strength of the sun's UV rays in 
your region. The higher the number, the stronger the rays. Check your region's... [DOC] [TLE] Student's Guide - Ultraviolet Radiation [PAR] The sun is a major source of ultraviolet rays. Though the sun emits all of the 
different kinds of electromagnetic radiation, 99% of its rays are in the form of 
visible... [DOC] [TLE] ultraviolet radiation | physics | Britannica.com [PAR] Apr 14, 2016 ... That portion of the electromagnetic spectrum extending from the violet, or short-
wavelength, end of the visible light range to the X-ray region. [DOC] [TLE] The Difference Between UVA and UVB Rays | GE Global Research [PAR] Aug 15, 2011 ... Learn About Sun and Sunscreen Safety With Jennifer Zhao From GE ... However, 
both types of UV rays can cause skin cancer because they... [DOC] [TLE] UV Rays - Care in the Sun [PAR] UVA rays are present all year round and can penetrate glass and clouds. ... Cool 
bright days even with light cloud can have damaging levels of UV radiation. [DOC] [TLE] UV:harmful effects [PAR] For people with fair skin, it takes only 15-30 minutes in midday sun to induce 
erythema ... UV rays can also damage the eyes as more than 99% of UV 
radiation is... [DOC] [TLE] Radiation from the Sun - Universe Today [PAR] Radiation from the Sun, which is more popularly known as sunlight, is a mixture 
of electromagnetic waves ranging from infrared (IR) to ultraviolet rays (UV. [DOC] [TLE] WHO | Health effects of UV radiation [PAR] Prolonged human exposure to solar UV radiation may result in acute and chronic 
... may be caused or enhanced by sun exposure according to WHO estimates. [DOC] [TLE] WHO | Sun protection [PAR] Sunscreen should never be used to prolong the duration of sun exposure. ... The 
sun's UV rays are the strongest between 10 a.m. and 4 p.m. To the extent... [DOC] [TLE] UV Protection - American Optometric Association [PAR] UV Light The sun supports life on our planet, but its life-giving rays also pose 
dangers. The sun's primary danger is in the form of ultraviolet (UV) radiation. [DOC] [TLE] Sun Safety | US EPA [PAR] Mar 21, 2016 ... Learn About the UV Index. Two beach chairs in the sun. What's your UV forecast? 
What do the ... Children in sun safe hats and glasses". [DOC] [TLE] where the sun

Question: Sunlight rays:UV
Answer: ultraviolet