provide collective security against the Soviet Union
Growth of the railroads.The government gave the railroad companies huge amounts of land for every mile of track laid. This land was used to develop new towns and cities, greatly reducing the area of free pasturage available to cattle owners for their herd.
Increasing numbers of new immigrants. Many of these European immigrants set up as sheep farmers, which required much less capital investment than cattle farming. The sheep farmers fenced off their land, further reducing available free pasturage for cattle, and additionally denying access to vital water sources for the cattle herds.
D because the president at the time was against racism but the southern governor of Arkansas was for it.
C The Aztec Empire was conquered by Hernán Cortés in 1519
