Why we smoke 0

The word smoking is very small in saying.but as we feel it is very small but having properties very huge.
it also give the birth of air pollution.causes this there is the lot of ill.consisting like “cancer”.the cancer is very dangerous . if a person suffering from this he get his death because there is no medicine for this.so it is very necessary to know about the smoking. the youngester (age starts above 15 years old) does not know about all these things .so it is very necessary this could be teach by the teacher in the class.untill youngesters do not know about all things the new type of ill bill be born.