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2015-09-30T09:37:14+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Smoking affects the lungs. Cigarette smoke contain three main ingredients these are nicotine tar and carbon mono oxide.
smoking causes diseases in humans which are tuberculosis and lung cancer.
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2015-09-30T09:40:57+05:30

This Is a Certified Answer

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Smoking affects our lungs and it causes many deadly disease  ,they cause lung cancer,chronic bronchitis.
if u have asthma  it can trigger an attack .
i hope this helps u...
 
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