What invention is responsible for prolonging the use of slave labor in the
u. s.?
a) the railroad
b) interchangeable parts
c) the cotton gin
d) the mccormick reaper

answer; i do believe that the (14th)fourteenth amendment is the correct answer

do but i don't go there

explanation:

btw this is in middle school stuff lol

ghana achieved independence peacefully, while algeria gained independence through an armed struggle.

he is known for discovering   the fossil of a female hominin australopithecine   known as "lucy" in the afar triangle region of hadar, ethiopia.

hope this !

have a great day!