The correct answer should be D. an urban unit with clear boundaries and a degree of autonomy
A has to be a town, even though the definitions of the two are almost the same. B is not it because a city can be an industrial center, not a cultural one. C is not it because natural geographic boundaries are not necessary.
Considering the autobiography of Lincoln, the two authors uses the same style in supporting their claims. The supporting evidence they use is strong which makes their claims logically correct. They describe it intensively and they provide great amount arguments to prove their claims
The middle class that emerged consisted of a group of people that included managers, salesmen, engineers, doctors, accountants and other salaried professionals who worked for a living but were better educated than the poor working-class.
The children of those middle-class people did not have to find work to support their families and this created opportunities for education and advancement. This pushed the government to support the growth of higher education. All of this made the middle class remain the solid class until today because people were educating themselves, it also made possible for many people to rise socially, because there were many opportunities available for middle-class children.
It is something that is right
A. 100 years. Because <span>The Energy Information Administration currently estimates that the U.S. is sitting on 2,203 Tcf (trillion cubic feet) of technically recoverable natural gas. Technically recoverable means that the resource can be produced with existing technology, and includes proved (estimated quantities under current economic and operating conditions) and unproved (irrespective of economics or operating conditions). The EIA states “At the rate of U.S. natural gas consumption in 2011 of about 24 Tcf per year, 2,203 Tcf of natural gas is enough to last about 92 years.</span>
