Saturday, December 28, 2013

Smoking and its effects

History: European explorers who arrived in the Western Hemisphere in the 1500s notice native-born Americans locoweed baccy plant leaves in pipes. The colonists who followed them grew baccy plants as a cash crop for export, and take in became instigate of European culture by the 1600s. Most tobacco plant was consumed in pipes and cigars or as snuff (finely pulverized tobacco inhaled into the nostrils). This radiation pattern changed by the early 20th century, by which time smokers consumed much than 1,000 cigargonttes per capita each year in the unite States and some European countries. Inhaling the smoke of tobacco leaves. Tobacco contains the medicine nicotine, which is a stimulant and can be addictive, as wholesome as delivery and other toxic substances. Smoking has been turn up to cause lung cancer and cancers of the mouth, larynx, and oesophagus; chest diseases, such as bronchitis and emphysema; and to ease up to heart disease. Women smokers have a higher risk o f diseases of the circulative system, particularly if smoking is combine with the contraceptive pill; smoking during pregnancy whitethorn coif the unborn baby at risk, or lead to light source birth weight. The main section tobacco is an annual or short-lived perennial plant, genus Nicotiana tabacum, which produces a spiral of bounteous leaves on a hardy stem about 2 m (6.5 feet) tall.
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It belongs to the same family as the potato, tomato, and sweet pepper (see Nicotiana). Native to tropical America, it is now elegant throughout the world, with the USA macrocosm the largest producer. Tobacco plants may be harve sted whole, or individual leaves may be pick! ed as they mature. The leaves are then air-, fire-, or flue-cured. later curing, the leaves must be held for a time in humid conditions before they can be further played. During this fermentation process the aroma develops and levels of... If you want to build a full essay, tell apart it on our website: OrderCustomPaper.com

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