Article: The strength of the Viking influence on Old English appears from the fact that the indispensable elements of the language - pronouns, modals, comparatives, pronominal adverbs (like "hence" and "together"), conjunctions and prepositions - show the most marked Danish influence; the best evidence of Scandinavian influence appears in the extensive word borrowings for, as Jespersen indicates, no texts exist in either Scandinavia or in Northern England from this time to give certain evidence of an influence on syntax. The change to Old English from Old Norse was substantive, pervasive, and of a democratic character. Old Norse and Old English resembled each other closely like cousins and with some words in common, they roughly understood each other; in time the inflections melted away and the analytic pattern emerged. It is most "important to recognize that in many words the English and Scandinavian language differed chiefly in their inflectional elements. The body of the word was so nearly the same in the two languages that only the endings would put obstacles in the way of mutual understanding. In the mixed population which existed in the Danelaw these endings must have led to much confusion, tending gradually to become obscured and finally lost." This blending of peoples and languages happily resulted in "simplifying English grammar."

Question: What language was spoken in Northern England after the Viking invasions?
Ans: Old Norse

Article: Most mutations within genes are neutral, having no effect on the organism's phenotype (silent mutations). Some mutations do not change the amino acid sequence because multiple codons encode the same amino acid (synonymous mutations). Other mutations can be neutral if they lead to amino acid sequence changes, but the protein still functions similarly with the new amino acid (e.g. conservative mutations). Many mutations, however, are deleterious or even lethal, and are removed from populations by natural selection. Genetic disorders are the result of deleterious mutations and can be due to spontaneous mutation in the affected individual, or can be inherited. Finally, a small fraction of mutations are beneficial, improving the organism's fitness and are extremely important for evolution, since their directional selection leads to adaptive evolution.:7.6

Question: What does the directional selection of beneficial mutations lead to?
Ans: adaptive evolution

Article: Bernanke explained that between 1996 and 2004, the U.S. current account deficit increased by $650 billion, from 1.5% to 5.8% of GDP. Financing these deficits required the country to borrow large sums from abroad, much of it from countries running trade surpluses. These were mainly the emerging economies in Asia and oil-exporting nations. The balance of payments identity requires that a country (such as the U.S.) running a current account deficit also have a capital account (investment) surplus of the same amount. Hence large and growing amounts of foreign funds (capital) flowed into the U.S. to finance its imports.

Question: What type account is needed by the U.S. to balance an account deficit?
Ans: capital account

Article: In 1998, Democratic voters dominated areas of the state with a high percentage of racial minorities and transplanted white liberals from the northeastern United States, known colloquially as "snowbirds". South Florida and the Miami metropolitan area are dominated by both racial minorities and white liberals. Because of this, the area has consistently voted as one of the most Democratic areas of the state. The Daytona Beach area is similar demographically and the city of Orlando has a large Hispanic population, which has often favored Democrats. Republicans, made up mostly of white conservatives, have dominated throughout much of the rest of Florida, particularly in the more rural and suburban areas. This is characteristic of its voter base throughout the Deep South.

Question: What party dominates South Florida and Miami
Ans:
racial minorities and white liberals. Because of this, the area has consistently voted as one of the most Democratic areas of the state