what is the cause of lung cancer?

Question:

Answers:
Most lung cancer is caused by smoking. About 87% of lung cancers are related to smoking. Exposure to other harmful substances, such as asbestos, radioactive dust, or radon, also increases the risk for lung cancer.

Other Answers:
Cigarette smoke

any kind of tobacco smoke or scent like breathing in scents of chewing tobacco and cigarette smoke
Source(s):
i just do

there are alot to name but the most important one is chemical/enviromental poluted air

chemical gasses .it can be any gas

Smoking 20 cigarettes for 25 years per day can cause lung cancer

There are several causes, however smoking is probably the number one cause. If you smoke, I would quit.I smoked for 15 years and I am quitting right now.it is hard, but worth it! your skin and hair will feel softer, you will feel better waking up in the morning.hope I helped!!

tobacco use, second hand tobacco smoke exposure, long term asbestos exposure and long term radon exposure are responsible for many cases of several types of lung cancer

Many causes
for time being the main cause is of course=cigarette the core habit..
other than tht,it can be inhalled asbestos,silicons(all those occupational diseases)
Or idiopathic.

CIGARRETTS! DON'T SMOKE THEM NOW, IN THE FUTURE AND QUITE IF YOU DO!

Smoking Mostly !

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what is the cause of lung cancer?

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