1. The introduction of four uniform time zones in the United States was a direct result of
a) the widespread introduction of mechanical clocks from China.
b) the loss of influence of the Catholic church.
c) the impact of a fully integrated railroad system.
d) the growth of commercialized farming in the 20th century.
2. The most culturally influential class in Industrial Britain was
a) the urban proletariat.
b) the land-owning aristocracy.
c) the growing number of factory workers.
d) the wealthy middle classes.