Quiz: Titanium Dioxide and Cancer

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1. Q1.How do health agencies classify titanium dioxide?

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

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2. Q2.According to this article, how are people most often exposed to titanium dioxide?

   AThere is no known way for people to be exposed to itBOnly by taking a prescription medicine for itCBreathing titanium dioxide dust in manufacturing settingsDOnly through contact with the eyes

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3. Q3.Titanium dioxide is most strongly linked to which cancer?

   Abrain tumorsBbone cancerCeye (ocular) cancerDA possible link to lung effects from inhaled dust

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4. Q4.What does it mean that titanium dioxide is classified as a carcinogen?

   AThat everyone exposed to it is certain to get cancerBThat it can cause cancer under some conditions — a hazard, not a measure of personal riskCThat it has been banned in every countryDThat 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: Titanium Dioxide and Cancer.