UV, or ultraviolet, rays are the sun's invisible burning rays. They can cause sunburns, and in some cases skin cancer. There are three types of UV rays: UVB: Are the primary cause of sun burning, premature aging of the skin and the development of skin cancer.UVC: Are blocked by the ozone layer and do not reach the earth's surface.hey can cause sunburns, and in some cases skin cancer. There are three types of UV rays: UVB: Are the primary cause of sun burning, premature aging of the skin and the development of skin cancer. UVC: Are blocked by the ozone layer and do not reach the earth's surface.
About the IAC. The Intersocietal Accreditation Commission (IAC) provides accreditation programs for vascular testing, echocardiography, nuclear/PET, MRI, diagnostic CT, dental CT, carotid stenting, vein treatment and management and cardiac electrophysiology.
IDLE AIR CONTROL VALVE (IAC) Definition: An electrically-operated valve which allows air to bypass the throttle plate in a fuel injected engine to regulate engine idle speed. IDLE AIR CONTROL VALVE (IAC) The (IAC) is located under the Triton Plastic cover in the middle of the engine compartment.Very easy to replace.he idle air control valve is on top of the throttle body which is on top of the engine. The throttle body is at the end of the plastic intake housing opposite the air filter. â¦ The IAC looks like a little electric motor about the size of a spool of thread.