Why civilizations like those from mesopotamia, would live close to bodies of water?

Abill in the texas legislature that would allow a county to establish a new community college would be classified as a

Thomas more's fictional text about a society governed by reason and order is most likely a response to the conflict between a)the king and church leaders b)male and female leaders c)rulers of other nations d)royalty and the working class

What was a common feature of civilizations in both mesoamerica and south america during the classical era