✨Compare the emergence of advanced civilizations in Meso and South America with the four early river valley civilizations.✨ Native Americans dug ditches to move water from nearby rivers into their crop fields. Which early river valley civilizations used a similar system to help water crops?

1.the 80s' fashion for men was like a mixed bag that had skinny tights, leather pants, and jackets, parachute pants (or hammer pants), leg warmers, very short shorts, ripped and stone-washed denims, frilly puff-sleeved shirts, oddly striped shirts, skinny neck ties, hawaiian shirts, jams, nylon tracksuits in neon colors.

2.

3.colored tvs, malls, telephones

explanation:

google searches

i am pretty sure it is a

they supported black codes so the answer is a or b