Context and question: Agriculture is dominated by the cultivation and sale of food crops such as cassava, peanuts, maize, sorghum, millet, sesame, and plantain. The annual real GDP growth rate is just above 3%. The importance of food crops over exported cash crops is indicated by the fact that the total production of cassava, the staple food of most Central Africans, ranges between 200,000 and 300,000 tonnes a year, while the production of cotton, the principal exported cash crop, ranges from 25,000 to 45,000 tonnes a year. Food crops are not exported in large quantities, but still constitute the principal cash crops of the country, because Central Africans derive far more income from the periodic sale of surplus food crops than from exported cash crops such as cotton or coffee.[citation needed] Much of the country is self-sufficient in food crops; however, livestock development is hindered by the presence of the tsetse fly.[citation needed]
What is the real exported cash crop rate?
Answer: unanswerable
Context and question: The simplest known circadian clock is that of the prokaryotic cyanobacteria. Recent research has demonstrated that the circadian clock of Synechococcus elongatus can be reconstituted in vitro with just the three proteins (KaiA, KaiB, KaiC) of their central oscillator. This clock has been shown to sustain a 22-hour rhythm over several days upon the addition of ATP. Previous explanations of the prokaryotic circadian timekeeper were dependent upon a DNA transcription/translation feedback mechanism.[citation needed]
What has the simplest known circadian clock?
Answer: prokaryotic cyanobacteria
Context and question: On 29 November 1947, the United Nations General Assembly recommended the adoption and implementation of the Partition Plan for Mandatory Palestine. This UN plan specified borders for new Arab and Jewish states and also specified an area of Jerusalem and its environs which was to be administered by the UN under an international regime. The end of the British Mandate for Palestine was set for midnight on 14 May 1948. That day, David Ben-Gurion, the executive head of the Zionist Organization and president of the Jewish Agency for Palestine, declared "the establishment of a Jewish state in Eretz Israel, to be known as the State of Israel," which would start to function from the termination of the mandate. The borders of the new state were not specified in the declaration. Neighboring Arab armies invaded the former Palestinian mandate on the next day and fought the Israeli forces. Israel has since fought several wars with neighboring Arab states, in the course of which it has occupied the West Bank, Sinai Peninsula (1956–57, 1967–82), part of Southern Lebanon (1982–2000), Gaza Strip (1967–2005; still considered occupied after 2005 disengagement) and the Golan Heights. It extended its laws to the Golan Heights and East Jerusalem, but not the West Bank. Efforts to resolve the Israeli–Palestinian conflict have not resulted in peace. However, peace treaties between Israel and both Egypt and Jordan have successfully been signed. Israel's occupation of Gaza, the West Bank and East Jerusalem is the world's longest military occupation in modern times.[note 2]
Who was the executive head of the Zionist Organization?
Answer:
David Ben-Gurion