Tobacco leaves are the dried and processed leaves of the tobacco plant, primarily used for making cigarettes, cigars, and pipe tobacco. These leaves contain nicotine, a natural stimulant that can lead to addiction. The leaves are harvested, cured, and fermented to enhance their flavor and aroma before being used in various tobacco products. The cultivation of tobacco is a significant agricultural practice in many countries, particularly in North America, South America, and parts of Asia. Different varieties of tobacco plants produce leaves with distinct characteristics, influencing the taste and strength of the final product.