The radiation a person receives from the sun (cosmic radiation)is categorized as

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Cosmic radiation from the sun is considered a type of natural background radiation. Natural background radiation refers to the radiation that exists in the environment due to natural sources such as the sun, rocks, soil, and cosmic rays from outer space. Medical background radiation refers to the radiation exposure from medical procedures such as X-rays and CT scans. Atmospheric radiation is not a specific category of radiation. Radioactivity refers to the process of spontaneous decay of unstable nuclei and the emission of energy in the form of radiation.

The Radiation a Person Receives from the Sun (Cosmic Radiation)is