Answer:
The history of agriculture records the domestication of plants and animals and the development and dissemination of techniques for raising them productively. Agriculture began independently in different parts of the globe, and included a diverse range of taxa. At least eleven separate regions of the Old and New World were involved as independent centers of origin.
Among the options provided the correct answer is B or Beta. Beta waves were found and named by the German specialist Hans Berger, who concocted electroencephalography (EEG) in 1924 as a technique for recording electrical mind action from the human scalp. Berger named the bigger plentifulness, slower recurrence waves that showed up finished the back scalp when the subject's eye were shut alpha waves. The littler adequacy, quicker recurrence waves that supplanted alpha waves when the subject opened his or her eyes were then named beta waves
The United States Congress has two chambers: the House of Representatives (ften referred to simply as "the House") and the Senate. The House does not have staggered terms: every single member of the House of Representatives is elected to a two-year term, and all of the seats in the House are voted on at the same time.
The Senate, however, does have staggered terms. Senators are elected to six-year terms, but only a third of the seats in the Senate are up for election in a given election year. Federal election years are held on even years (2010, 2012, 2014, etc.), and on any given year only about a third of Senators will face reelection. This framers of the Constitution designed the Senate this way to make sure there was some continuity from one Congress to the next.
