Knowing that choices have consequences, why did early civilizations develop along river valleys?

a)nomadic tribes could use rivers to trade with others
b)river valleys were fertile places where agriculture could thrive
c)papyrus plants used to make paper grew near rivers
d)none of the above

the federalist party which advocated strong centralization dominated the united states government till 1800. so 1800 election transformed the power from one party to another party for the first time and was thus a turning point in american history. so jefferson called it "revolution of 1800".

explanation:

straight down to hell mate

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they liv