The Northwest Ordinance was an act that provided rules for governing the Northwest Territory and paved the way for -
a. admission of new states to the Union.
b. ratification of the U. S. Constitution.
C. expansion of slavery to northern states.
d. industrialization of the northern U. S.

The embargo act of 1807  was a law passed by the united state congress and signed by president thomas jefferson on december 22,  1807. it prohibited american ships from trading in all foreign ports. in 1806, france passed a law that prohibited trade between neutral parties, like the u.s., and britain.