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YouTubeNo College Needed
Overview of UV-A, UV-B, & UV-C Ultraviolet Light In The Electromagnetic Spectrum
UV light is divided into several categories based on its wavelength: UVA (315 to 400 nm): The least energetic and most long-waved UV light, which reaches the Earth's surface and is responsible for skin aging and long-term skin damage. UVB (280 to 315 nm): More energetic than UVA, UVB is partially absorbed by the ozone layer but can still reach ...
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The girlfriend of late Cowboys star Marshawn Kneeland is pregnant, Dallas head coach Brian Schottenheimer revealed just days after his death. Kneeland died by apparent su*cide at the age of 24 last week, roughly 48 hours after he scored his first NFL touchdown for the Cowboys against the Arizona Cardinals. On Wednesday, Schottenheimer also announced that the team have set up a memorial fund to support his girlfriend, Catalina Mancera, and the unborn baby. 'She's pregnant and so we want to make s
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The girlfriend of late Cowboys star Marshawn Kneeland is pregnant, Dallas head coach Brian Schottenheimer revealed just days after his death. Kneeland died by apparent su*cide at the age of 24 last week, roughly 48 hours after he scored his first NFL touchdown for the Cowboys against the Arizona Cardinals. On Wednesday, Schottenheimer also announced that the team have set up a memorial fund to support his girlfriend, Catalina Mancera, and the unborn baby. 'She's pregnant and so we want to make s
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