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If i test to see how cigarette smoke affects household plants, then it will be that cigarette smoke has shown to have an plants though it with oxygen.
cigarette affects your teeth, your lungs, your nails, and has an odor on almost everything you smoke near of.
Nicotine
tar.
carbon monoxide, cigarette smoke, marajuahna.... there are a lot of things that are bad for the breathing system.
Many things, to include 'first hand smoke'.
Over 1,000 different substance all in them
Nicotine is a highly addictive substance that occurs naturally in tobacco.
carcinogen
The callamentanoriphic floritoxicidic acid
Because there is a powerful, and highly addicted substance called nicotene that has the smokers wanting the cigarette, even though it kills them with each cigarette they smoke.
When you breath in the cigarette/cigar/pipe/pot/hookah smoke, you are inhaling. When you breathe out you are exhaling. Sometimes exhaling can be called "making smoke rings" if you try to do something fancy with your breath.