Holistic Education and Research (HEAR)
- Science
- March 24, 2025

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ABSTRACT : Radionuclides with a long half-life such as that of K-40 have existed on Earth for 4.6 billion years (By), since its very origin. Some radionuclides, such as H-3 and C-14, are formed continuously in the atmosphere. These are in fact essential body components: all organisms are radioactive and are constantly and invariably exposed
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