tar
tar
Kurayami: Tar enters your lungs when you smoke and can build up.
Smoking is never good for the lungs, and that is true no matter what it is that you are smoking. The smoke coats the lung surface and makes it dirty; it is difficult for lungs to clean themselves. Coughing, difficulty breathing, lung cancer, and emphysema are all likely to result from prolonged smoking.
It causes tar to build up on the lungs and it can cause serious injuries and maybe even death.
John Loudon McAdam, a Scottish road building expert, is credited with being the first to build tar surfaced roads. That is why they are called macadam roads.
It damage your lungs and you may eventually get lung cancer due to the build up of tar in your lungs.
asphalt is made up of the mineral bitumen otherwise known as pitch
The nicotine is the addictive substance, however it is the tar within the cigarette which is harmful to the human body. This tar sufficiently reduced the surface area of the alveoli to perform gas exchange. This black tar fills up and blocks the lungs making it harder for the smoker to breathe - causing breathlessness. This tar build up also leads to heart diseases and such.
smoking causes tar to build up on the lungs, and the Cilia can't function properly.
Tar is obtained from liquid petroleum. Tar is used as a hot liquid covering under gravel to build roads. Note: Asphalt is made from bituminous coal pitch, mixed with sand or gravel. The black color comes from coal pitch, not from petroleum, as does tar.
Pine tar itself, sometimes called pitch. It was used to seal the gaps between planks to make them water-tight, and to protect rope from weather damage.