Which of the following scenarios is the best example of cultural diffusion? A.
American English is taught in schools throughout the United States.
B.
McDonald's opens more restaurants throughout the United States.
C.
The Iowa State Fair hosts a cow-milking contest with local farmers' cattle.
D.
Salsa dancing becomes popular in Miami, Florida, due to a large Latino population.

Based on this map of oil imports, which nation imported the greatest number of oil barrels each day in the years before 2006?
A.
China
B.
Australia
C.
Canada
D.
the United States