the process by which energy is emitted as particles or waves. It can take the form of sound, heat, or light. This energy is transmitted through space or a material medium.

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People are exposed to a variety of natural and artificial radiation everyday. It is a part of life! 

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Radiation is given off by a wide variety of processes, such as thermal activity, nuclear reactions (as in fission), and by radioactive decay. 

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Radiation is used in medical diagnosis and treatment such as X-rays. 

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