Bicameralism Canadian provinces had all their upper houses abolished. In Argentina, eight provinces have bicameral legislatures, with a Senate and a Chamber of Deputies: Buenos Aires, Catamarca, Corrientes, Entre Ríos, Mendoza, Salta, San Luis (since 1987) and Santa Fe. Tucumán and Córdoba changed to unicameral systems in 1990 and 2001 respectively. In Australian states, the lower house was traditionally elected based on the one-vote-one-value principle, whereas the upper house was partially appointed and elected, with a bias towards country voters and landowners. In Queensland, the appointed upper house was abolished in 1922, while in New South Wales there were similar attempts
Tobacco industry in Argentina are concentrated in the north of the country. The provinces of Jujuy and Salta (in the north-west), and Misiones (in the north-eastern Mesopotamia), are the leading ones, with over 45,000 tonnes/year each. The other tobacco-producing provinces are Tucumán, Corrientes, Chaco and Catamarca. Tobacco plays an important role in the economy of the producing areas, which are comparatively poor provinces. The Argentine tobacco industry employs 500,000 people, about half of them directly involved in the planting and harvesting, only about 2% in the manufacturing of the derived products, and the rest in distribution and sales. Therefore, despite the fact that the