Why was the issue of slavery debated each time more territory was added to the united states

In ww1 where did france find laborers to with their war movement? ? & what country did the french fear?

How did gates men react to encountering british troops at camden south carolina

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.