44.The word "those" in line 9 refers to
(A) boundaries
(B) persons
(C) units
(D) areas
45.The word "constituting" in line 16 is closest in meaning to
(A) located near
(B) determine by
(C) calling for
(D) marking up
46.The word "which" in line 18 refers to a smaller
(A) population
(B) city
(C) character
(D) figure
47.Which of the following is NOT true of an SMSA?
(A) It has a population of at least 50,000
(B) It can include a city’s outlying regions
(C) It can include unincorporated regions
(D) It consists of at least two cities.
48.By 1970, what proportion of the population in the United States did NOT live in an SMSA?
(A) 3/4
(B) 2/3
(C) 1/2
(D) 1/3
49.The Census Bureau first used the term "SMSA" in
(A) 1900
(B) 1950
(C) 1969
(D) 1970
50.Where in the passage does the author mention names used by social scientists for an urban area?
(A) Lines 4-5
(B) Lines 7-8
(C) Lines 21-23
(D) Lines 27-29.