Why did spanish settlers turn to african slaves to provide the labor for their american colonies?
a. the native american population had been greatly reduced through war and disease.
b. the price of african slaves dropped dramatically in the early 1500s.
c. the spanish settlers were unwilling to work.
d. african slaves proved to be better workers than native americans.

by creating a labor shortage that pushed the continent toward a market economy

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.