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

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The two basic sources of ionizing radiation exposure are natural (or background)radiation and human-made (artificial)radiation sources.Background sources occur spontaneously in nature and can be affected by human activity.These forms include cosmic radiation from the sun and other planetary bodies and naturally occurring radioactive substances present on earth (e.g.,uranium and radium),which can be inhaled or ingested through food,water,or air (radon).

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