Which does not describe a change that took place between 1800 and 1821 to the boundaries of the united states?
a. california and oregon were admitted as new states.
b. the louisiana purchase doubled the country's size.
c. florida became a part of the united states.
d. new admissions brought the total number of states to twenty-four.

the virginia plan called for three branches of government and two houses of congress. representation in each house would be determined by population. the new jersey plan called for three branches of government and a single house of congress. each state would have an equal vote.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.