Asbestos is the main ingredient causes lung cancer. Fortunately, in America have banned the roof made of asbestos because the risk is very, very dangerous. But if we consider, in some parts of the United States, there are still many who use asbestos as roofing.
Asbestos proven to cause respiratory problems. If the material is inhaled by the lungs, then very soon we will suffer from lung cancer. It is unfortunate that the American death rate is very high.
After investigation, it turns out in addition to their use of asbestos as an ingredient atapp home, they also depend on the cigarettes. Cigarettes are very effective cause lung disease. And all that makes American people and threatened the surrounding lung cancer.
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