Quiz: Known vs. Suspected Carcinogens

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1. Q1.What makes a carcinogen 'known'?

   AAnimal studies onlyBStrong, consistent evidence from studies in people (IARC Group 1; NTP 'known')CA single lab testDPublic opinion

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2. Q2.Which describes a 'suspected' carcinogen?

   AIARC Group 1BIARC Group 2A/2B or NTP 'reasonably anticipated' — weaker or animal-based evidenceCProven to cause cancer in peopleDBanned everywhere

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3. Q3.Is a 'known' carcinogen always more dangerous than a 'suspected' one?

   AYes, alwaysBNo — the labels describe certainty of hazard, not the size of the riskCOnly for chemicalsDThey are unrelated to danger

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4. Q4.Can a suspected carcinogen be cleared later?

   ANeverBYes — saccharin and coffee were both later cleared or downgradedCOnly if banned firstDOnly in Europe

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This quiz checks understanding of educational content only. It is not medical advice. Read: Known vs. Suspected Carcinogens.