Help plzz! Will give brainliest and 20 points What can the ancient societies of Mesoamérica teach us about society today?

7. how did the early egyptians use the flooding of the nile river to their advantage? they diverted the water to flood their enemy's lands and destroy their crops. they created an easier way to travel to the mediterranean sea and the indian ocean. they established a new water-based athletic event for the ancient olympics in greece. they devised an innovative irrigation system, which created a surplus of food.

What side of the american civil war would you choose to fight for and why

What were some effects in world war 1 in europe ? ( and only in europe)