Agricultural development led early societies to settle. Settlements required growing food and a lasting source of water. That's why these early civilizations were born around rivers. The proximity of rivers facilitated access to fertile soil and, logically, to water.
Once a civilization has a stable source of food it can start growing surplus of it, which creates the possibility of trade. That is, stable food production is a base for the complexification of a society that can lead to the creation of other jobs, like the merchant.
It also enables a society to complexify its social structures, to build cities, to develop religion and culture which creates more jobs.
Answer:
The tribe adopted crop-farming techniques from the Pueblo peoples, growing mainly the traditional "Three Sisters" of corn, beans, and squash. After the Spanish colonists influenced the people, the Navajo began keeping and herding livestock—sheep and goats—as a main source of trade and food.
Explanation:
