The Articles of Confederation created a one branch of government consisting of a national legislature called "the Congress," although it should be noted that this Congress was very different from what it is today.
The Ganges is very closely associated with Hinduism.
The type of society which didn't have a centralized government was called a Pastoral society. So that is your correct answer.
All the other civilizations/societies - the Egyptian one, the Mycenaeans, and the Indus valley civilization - had governments which were centralized and not dispersed to different locations.
