Which person participates mostly in the quaternary level of an economy? A. A coal miner
B. A car factory worker
C. A college professor
D. A car mechanic

The world wars of the twentieth century immediately led to a. the establishment of a communist bloc in eastern europe b. the urbanization of europe’s societies c. an emphasis on humanism d. an emphasis on ties to greek and roman societies select the best answer from the choices provided. a b c d