A. greater rainfall
B. greater crop yields
C. climate changes
D. fluorochlorocarbon production
A. the ecosystem is disturbed
B. biological capital is lost
C. the environment is degraded
D. all of the above
A. provided good housing for the poor
B. secured many jobs for the poor
C. eliminated housing discrimination
D. moved residents but not improved conditions
A. slums
B. a concentration of one racial group in an area
C. residents who make up an economic underclass
D. all of the above
A. a standard metropolitan area
B. a megalopolis
C. an ecological city
D. a repetition of the Greek polis
A. several small towns
B. a central city and surrounding suburbs and small towns
C. the city only
D. a city with a subway system
A. skin color only
B. homogeneous families
C. social class
D. the grass being greener in the suburbs
A. are doomed to total disorganization
B. are too expensive
C. stimulate creativity
D. will revert to rural areas within a short time
A. 20 percent
B. 49 percent
C. 50 percent
D. 80 percent
A. has been reinforced by recent studies
B. is based on stereotypes
C. helped democratic representation in the states
D. gave urban dwellers an inferiority complex