Arrt mosbys safety Guides d'étude, Notes de cours & Résumés

Natural background radiation represents what amount of human radiation exposure? - 50% The greatest source of natural background radiation exposure is? Cosmic rays radioactive materials the body itself radon gas - Radon gas Cosmic natural background radiation is a part of _______________ _____________ exposure. - Natural background Radon gas: a. Presents a danger when undetected b. Is present in doses proportional to other sources c. Is entirely human-made d. Is the s...