In the city the population was spread out with 23.0% under the age of 18, 7.3% from 18 to 24, 22.0% from 25 to 44, 22.5% from 45 to 64, and 25.1% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 94.0 males. For every 100 females age 18 and over, there were 88.7 males.
What was president Eisenhower's explanation of the domino theory? If one country falls to communism, the communists will know that they can succeed; and if they see that the US cannot, or will not intervene, then they will know that they migâ¦ht succeed with another country...and then another one, and so forth.
Central Place Theory. A theory that explains the distribution of services, based on the fact that settlements serve as centers of market areas for services; larger settlements are fewer and farther apart than smaller settlements and provide services for a larger number of people who are willing to travel farther.orchert's Model of Urban Evolution. refer to four distinct periods in the history of American urbanization. Each epoch is characerized by the impact of a particular transport technology on the creation and differential rates of growth of American cities.