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ADA NBDHE Dental Hygienist

Category - Provision of Clinical Dental Hygiene Services

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What type of radiation constitutes the largest source of radiation exposure?

Naturally occurring
Medical applications
Nuclear energy
Research facilities

Explanation

Answer: A - Naturally-occurring radiation constitutes the largest source of radiation exposure. Naturally occurring radionuclides are found in soils and in cosmic radiation from outer space.

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ADA NBDHE Dental Hygienist

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