(1) On our way out of al-Juweibir, we stop and talk to a man putting a thick layer of tar on his grandfather's boat.

(2) Depending on the type and location of the flashings, roofing tar or silicone or butyl rubber sealants can be used to seal small cracks and gaps.

(3) The tar and stone mixture layer was found to be less than the prescribed 7 mm.

(4) The ratio of tar to nicotine produced in the tobacco smoke of low tar cigarettes is in fact closely similar to that of conventional cigarettes.

(5) I continued walking across the hot black tar of the parking lot until I reached a dark blue Ferrari.

(6) NRT products provide a way of coping with nicotine withdrawal without taking in the harmful substances of tar and carbon monoxide.

(7) Tobacco is a sweet smelling product of the aromatic leaves of the Nicotina plant, but contains carcinogenic and highly addictive substances like nicotine, tar and benzene.

(8) Cannabis deposited four times as much tar on lungs as tobacco and could, if used regularly, cause cancer.

(9) Although triggers such as tobacco tar and radioactive radon gas are known to be linked to lung cancer, little is understood of the genetic damage that causes the disease.

(10) In line with the motive to instruct, there are diseased organs, a liver shrivelled from alcohol abuse, lungs disfigured by cigarette tar , the misshapen brain of an Alzheimer's sufferer.

(11) But environment watchdogs said that residents have not been put at risk by a complex operation to remove chemicals including tar , cyanide, ammonia and carcinogenic coal naptha.

(12) For roofs this is generally done by applying a coating such as tar , acrylic, silicone or rubberized paint.

(13) Smoking the drug carries a high risk of mouth, throat and lung cancer, the same as smoking cigarettes really but without the added nicotine and tar .

(14) Spain needed pine for tar , turpentine, and wood-essential naval stores for its shipbuilding industry in Cuba.

(15) Hardwoods are better because they burn hotter and form less creosote, an oily, black tar that sticks to chimneys and stove pipes.

(16) Cannabis acts as a relaxant without damaging the liver from alcohol abuse and has less tar than a cigarette.

(17) To remove tar , freeze it to brittleness with ice cubes and then scrape it off with a plastic spatula.

(18) However, it is understood the substance is a waste product created during the distillation of tar , coal, oil or gas and contained sulphuric acid.

(19) Still impure, the gas was then passed through condensers and scrubbers to remove tar , and then through iron oxide purifiers to remove other impurities.

(20) In addition to nicotine, cigarette smoke is primarily composed of gases (mainly carbon monoxide) and tar .