As we know cigarette is known as symbol of Cancer and other heart diseases.But now good use of cigarettes is exposed.Now scientist have prove that ashes of cigarette can be used to make water purify.
In water there is toxic chemical "Arsenic" which is not good for health, but aches of cigarette is used to make water Arsenic-free.There is another way of making Arsenic-free water but that is very expensive method as compared to Cigarette as
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