Why did lincoln speak of a house divided?
he was worried about what the civil war was doing to the country.
he spoke of the party divisions between the republicans and the democrats.
he was referring to the federal government versus the state government.
he saw the ideas of free and slave territory causing disharmony.

utilized the penal colony

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.