Which occurred after the spanish introduced the horse to north america?
a.
plains indians started hunting buffalo more efficiently.
b.
pacific northwest indians drove the spanish off their lands.
c.
southwestern indians planted different crops than before.
d.
eastern woodland indians increased the size of their fields.

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.