.... the present atmosphere and hydrosphere began to develop from volcanic emissions. It was during the proterozoic that a critical change occurred in the atmosphere, when it changed from a trace oxygen content of the Archean atmosphere to above 15% oxygen by 1800 mya. It is widely believed that this change was brought about by the emergence of cyanobacteria which had adapted to create energy from the sun by photosynthesis(probably due to a shortage of raw materials for energy), as a result they had began to poison the earlier anaerobic bacteria or archea with their waste product; oxygen. This essay will focus on the evolution of the atmosph .....

.... sat. At first the spectators sat on the ground, later on wooden bleachers and finally on tiers of stone seats which followed the circular shape of the orchestra and the natural contours of the countryside. The theatron surrounded the orchestra on three sides. Describing the theater of Dionysus, David Taylor writes, " The spectators seats were in a curving area, a little more than a semi-circle and slope down to the center" (Taylor 19). Even though all classes of people attended the theater there were reserved areas for the more prestigious, such as the king. " The audience arranged in rows, looked out across a rounded orchestra" (Ken .....

.... States Civil Rights Movement of the 1960's was the centerfold of the 1900's. The Movement came about because not all Americans were being treated fairly. In general white Americans were treated better than any other American people, especially black people. There were many events of the Civil Rights Movement some dealt with black people not getting a fair education. Some events came about because people were advocating that people should be able to practice their American rights. The term paper that you are about to read is composed of events that occurred as apart of the Civil Rights Movements. The events are all in chronological .....

.... in Congress he managed to get several things done. Such as a public housing bill, an expansion of social security coverage, and increased minimum wages. The Republican party was not in favor of the majority of this legislation. Thus when Eisenhower was elected they immediately made plans for cutbacks in the spending on these programs. Unfortunately for them the newly elected president was not opposed to the programs Truman had began and improved upon. Over the course of his administration Eisenhower often did not hold the same opinions as some of the members of his party. As the Chief Economic advisor to the President o .....

.... evil to men. In the plays of Sophocles, the gods brought about the hero's downfall because of a tragic flaw in the character of the hero. In Greek tragedy, suffering brought knowledge of worldly matters and of the individual. Aristotle attempted to explain how an audience could observe tragic events and still have a pleasurable experience. Aristotle, by searching the works of writers of Greek tragedy, Aeschulus, Euripides and Sophocles (whose Oedipus Rex he considered the finest of all Greek tragedies), arrived at his definition of tragedy. This explanation has a profound influence for more than twenty .....

.... make the wall. West Berliners looked on in disbelief at the overturned trees, trenches, and barbed wire. Yet they couldn't do anything about it because on the opposite side was guards with guns pointing directly at them. After the work on the wall was completed, it was 10-13 feet high. If it were straight, it would have been 103 miles long. On the communistic East side there was another smaller wall. The land inbetween these walls were extremely dangerous. Guard patrolled this area with guns. This didn't stop people from trying to get through though. People went to all extremes trying to get to the other sides, including crashing th .....

.... It was written that every town should reserve land “for the maintenance of public schools�, “ knowledge being necessary to good government, and the happiness of mankind , education shall forever be encouraged�. Article 3 however did not specify however if federal money would be given to the schools for use, nor did it specify if African-Americans could attend schools with whites' and although it the separation of church and state had been previously outlined, the Ordinance did not mention if it was ok to teach creationism in schools. These problems are still being debated on. (Northwest Ordinance packet, 40-41) The Northwest .....

.... along the eastern seaboard. That same year she came into contact with the abolitionist movement, which she enthusiastically embraced, and for the next few years she toured the country speaking in its behalf. Encountering the women's rights movement in 1850, she also added its causes to hers. During the American Civil War she solicited gifts for black volunteer regiments, and President Abraham Lincoln received her in the White House in 1864; she later advocated a "Negro State" in the West. Sojourner Truth continued to stump the country on speaking tours until 1875. An illiterate all her life, she was nevertheless an effective speaker an .....

.... to create the Bank of the United States was stated in the “elastic� or the “necessary and proper� clause in which the Constitution gave the government the power to pass laws that were necessary for the welfare of the nation. “ This began the argument between the “strict constructionists� (Jefferson) who believed in the strict interpretation of the Constitution by not going an inch beyond its clearly expressed provisions, and the “loose constructionists� (Hamilton) who wished to reason out all sorts of implications from what it said�. Hamilton and Jefferson began to disagree more and more. Hamilton wrote nas .....

.... effects, and the second generation. The physical effects were enormous among the Jews. The conditions of the camps defy description. The nutrition was worse than inadequate and the results being the well-known "musselmen": skeletons covered by skin. After the Jews in prison camps were freed, their diseases were treated as well as could be treated. Premature aging was one of the most prominent disabling effects of survivors. Digestive tract diseases were also very common because of the emotional disturbances and inadequate diet during their incarceration. The experience also placed them at risk of coronar .....