<span>Women had, during World War II, taken men’s jobs while they had been away at war. After the war, many women wanted to keep their jobs.
i hope i am right. well i should be cause i leaned this yesterday </span>
Hunters gatherers were nomadic. That means that when they would hunt enough and gather enough so that there's no more animals to hunt or food to gather, they would move to a different zone. Unlike them, agricultural communities made their own food so they could settle down and not worry about having to move after a while. This enabled them to have surplus of food and to trade with others and develop more.
Answer: I know you said list 3 reasons but here is 4 :)
Explanation: 1 Disease.
2 Guns and Horses.
3 The capture of Atahualpa.
4 Internal Problems.
It was a mistake to welcome the Americans to Nez Perce land