Quiz: Ionizing Radiation and Cancer

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1. Q1.How do health agencies classify ionizing radiation?

   AA probable (likely) human carcinogenBA known human carcinogen (strongest evidence)CA possible human carcinogen (weaker evidence)DNot classifiable — evidence is inconclusive

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2. Q2.According to this article, how are people most often exposed to ionizing radiation?

   AThere is no known way for people to be exposed to itBOnly by taking a prescription medicine for itCOnly through contact with the eyesDNatural background radiation and medical imaging

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3. Q3.Ionizing radiation is most strongly linked to which cancer?

   ALeukemia and several solid cancersBbrain tumorsCmelanoma of the skinDeye (ocular) cancer

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4. Q4.What does it mean that ionizing radiation is classified as a carcinogen?

   AThat everyone exposed to it is certain to get cancerBThat it has been banned in every countryCThat it can cause cancer under some conditions — a hazard, not a measure of personal riskDThat there is no way to reduce exposure to it

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This quiz checks understanding of educational content only. It is not medical advice. Read: Ionizing Radiation and Cancer.