We know that smoking is dangerous for health. Although we know that about smoking but most of the people don't care about it. We should know about the causes of smoking.
It is not only injurious for the smoker but also injurious for a neighbour. it's equally harmful to those people who are a smoker or not.
How much people are addicted to smoking I don't know but I think it's 60 percent or more than 60. Especially young society of this country is mostly affected by it.
Smoking is the main reason for cancer and it has happened gradually. So we should be careful about that.
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From @joykhan