It would be the "c. feudal system" that was <span>formalized in England during the medieval period, since this system left the lower class "peasants" with practically no upward social mobility. </span>
They created the number system and discovered that the earth was round by studying eclipses.
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The Texas vegetation region which is most densely populated would be D - plain. The reason for this is that there isn't much vegetation going on in Texas, but what is going on is called a plain. This isn't comparable to a subtropic area where the vegetation is very thick and big.
Answer:
The correct answer is A. A unique feature of the 2008 presidential election was that for the first time, an African American was elected president of the United States.
Explanation:
The 2008 presidential elections took place on November 4th and, as usual, were anticipated by almost two years of electoral campaign and by primaries for the selection of candidates. The elections were contested by the Republican candidate John McCain and the Democratic candidate Barack Obama, who prevailed in the competition. On January 20, 2009, Obama became into the first African-American to be elected as President of the United States.
cordoba was the most important city