UVA Rays:UVA rays are the longest of the UV Rays at 320-400 nanometers. They get through the atmosphere.

UVB Rays

UVB Rays are 290-320 nanometers. It goes through the atmosphere and causes skin aging, eye damage cataracts, skin cancers and damage to the immune system, UVA Rays does all this damage also.

UV Rays

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UVC Rays

UVC Rays is the most powerful rays. The UVC rays don't get through the Ozone layer, but the Ozone layer is breaking up by all are pollution.

UV Rays

UV Rays are sun rays that harm you over time when your in the sun. The UV Rays are UVA Rays UVB Rays and UVC Rays.