Here is a question about this article: Successful cultivation of cotton requires a long frost-free period, plenty of sunshine, and a moderate rainfall, usually from 600 to 1,200 mm (24 to 47 in). Soils usually need to be fairly heavy, although the level of nutrients does not need to be exceptional. In general, these conditions are met within the seasonally dry tropics and subtropics in the Northern and Southern hemispheres, but a large proportion of the cotton grown today is cultivated in areas with less rainfall that obtain the water from irrigation. Production of the crop for a given year usually starts soon after harvesting the preceding autumn. Cotton is naturally a perennial but is grown as an annual to help control pests. Planting time in spring in the Northern hemisphere varies from the beginning of February to the beginning of June. The area of the United States known as the South Plains is the largest contiguous cotton-growing region in the world. While dryland (non-irrigated) cotton is successfully grown in this region, consistent yields are only produced with heavy reliance on irrigation water drawn from the Ogallala Aquifer. Since cotton is somewhat salt and drought tolerant, this makes it an attractive crop for arid and semiarid regions. As water resources get tighter around the world, economies that rely on it face difficulties and conflict, as well as potential environmental problems. For example, improper cropping and irrigation practices have led to desertification in areas of Uzbekistan, where cotton is a major export. In the days of the Soviet Union, the Aral Sea was tapped for agricultural irrigation, largely of cotton, and now salination is widespread.
What is the answer to this question: Why is cotton grown as an annual crop?
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So... control pests


Here is a question about this article: The Alaska Constitution was written so as to discourage dedicating state funds for a particular purpose. The Permanent Fund has become the rare exception to this, mostly due to the political climate of distrust existing during the time of its creation. From its initial principal of $734,000, the fund has grown to $50 billion as a result of oil royalties and capital investment programs. Most if not all the principal is invested conservatively outside Alaska. This has led to frequent calls by Alaskan politicians for the Fund to make investments within Alaska, though such a stance has never gained momentum.
What is the answer to this question: Was Alaska's Constitution written to encourage or discourage state funds being used for a particular purpose?
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So... discourage


Here is a question about this article: Valencia is also internationally famous for its football club, Valencia C.F., which won the Spanish league in 2002 and 2004 (the year it also won the UEFA Cup), for a total of six times, and was a UEFA Champions League runner-up in 2000 and 2001. The team's stadium is the Mestalla; its city rival Levante UD also plays in the highest division after gaining promotion in 2010, their stadium is Estadi Ciutat de València. From the year 2011 there has been a third team in the city, Huracán Valencia, who play their games in Municipal de Manises, in the Segunda División B.
What is the answer to this question: How many times did Valencia C.F. win the Spanish league?
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So...
six