✨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?

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.

study of past cultures

you didn't post any options. a few things that spring is known to represent are: rebirth, birth, new life,   and life.

d.)   when the us left nato after the end of the cold war and they had to evolve to focus on more humanitarian measures with the smaller budget