Between 1820 and 1850, which trend most contributed to growing intensity over the issue of slavery? A. falling crop prices

B. territorial expansion

C. rising tariff rates

D. industrialization

By choosing to resupply fort sumter, abraham lincoln risked a. abandonment of the fort by union soldiers. b. abandonment of the fort by confederate soldiers. c. the appearance of giving in to confederate secession. d. armed conflict with southern soldiers.

Who was the first french explorer in america ? a. jacques cartier b. giovanni da verrazano c. samuel de champlain d. pere jacques marquette e. louis jolliet

What two different approaches did the knights of labor and the american federation of labor take in building a union organization? a) the knights of labor accepted only unskilled workers; the american federation of labor accepted only skilled workers. b) the knights of labor accepted skilled and unskilled workers; the american federation of labor accepted only skilled workers. c) the knights of labor refused to accept african american or chinese workers; the american federation of labor accepted all workers. d) the knights of labor accepted workers from a single industry; the american federation of labor accepted workers from several industries.