Scientific research studies have revealed that tobacco smoke contains lsquo Carcinogens rsquo which ...........

General Science (Easy) Chemistry

Scientific research studies have revealed that tobacco smoke contains ‘Carcinogens’, which are the main cause of cancer. These carcinogens include seven types of polycyclic hydrocarbons along with a radioactive element. The radioactive element is :

polonium

zirconium

plutonium

thorium

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Explanation:

Polonium-210 is an alpha emitter and carries the most risk. Learn the radiation basics. Cigarettes made from this tobacco still contain these radioactive elements. The radioactive particles settle in smokers' lungs, where they build up as long as the person smokes. Hence option 1st is correct.