Quiz: Secondhand Smoke and Cancer Risk

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1. Q1.According to this article, what are the two sources of secondhand smoke?

   ASmoke from wood fires and smoke from candlesBThe smoke that drifts off the burning end of a tobacco product and the smoke a smoker breathes outCSmoke absorbed into clothing and smoke from car exhaustDVapor from e-cigarettes and smoke from cigars only

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2. Q2.According to this article, what have experts concluded about safe levels of secondhand smoke?

   ABrief exposure outdoors is completely harmlessBSmall amounts are safe if a window is openCThere is no safe level of secondhand smoke exposureDOnly daily exposure over ten years is harmful

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3. Q3.According to this article, why are children especially vulnerable to secondhand smoke?

   ATheir bodies are still growing and they breathe faster than adultsBThey are shorter, so smoke settles at their heightCThey cannot smell smoke the way adults canDTheir lungs are fully developed but smaller

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4. Q4.According to this article, what is the only way to fully protect nonsmokers from secondhand smoke?

   AOpening windows while someone smokesBRunning a fan to move the air aroundCHaving the smoker use a different room of the homeDKeeping spaces completely smoke-free

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This quiz checks understanding of educational content only. It is not medical advice. Read: Secondhand Smoke and Cancer Risk.