AGRICULTURE Encyclopedia of the Nations Asia and the Pacific Pakistan Pakistan - Agriculture Agriculture is a vital sector of Pakistan's economy and accounted for 25.9 percent of GDP in 1999-2000, according to government estimates. The sector directly supports three-quarters of the country's population, employs half the labor force , and contributes a large share of foreign exchange earnings. The main agricultural products are cotton, wheat, rice, sugarcane, fruits, and vegetables, in addition to milk, beef, mutton, and eggs. Pakistan depends on one of the world's largest irrigation systems to support production. There are 2 principal seasons. Cotton, rice, and sugarcane are produced during the kharif season, which lasts from May to November. Wheat is the major rabi crop, which extends from November to April. The key to a much-needed improvement of productivity lies in a more efficient use of resources, prin...
Smoking generally has negative health effects, because smoke inhalation inherently poses challenges to various physiologic processes such as respiration . Diseases related to tobacco smoking have been shown to kill approximately half of long-term sm okers when compared to average mortality rates faced by non-smokers. Smoking caused over five million deaths a year from 1990 to 2015. [1] smoking Smoking is a practice in which a substance is burned and the resulting smoke breathed in to be tasted and absorbed into the bloodstream . Most commonly, the substance used is the dried leaves of the tobacco plant, which have been rolled into a small square of rice paper to create a small, round cylinder called a " cigarette ". Smoking is primarily practiced as a route of administration for recreational drug use because the combustion of the dried plant leaves vaporizes and delivers activ...
