Question

How did agricultural development influence the locations of emerging civilizations and the jobs of people who lived there?

Answer 1

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.