What were the main occupations of the inhabitants of Mesopotamia and why?

The ancient inhabitants of Mesopotamia were mainly engaged in agriculture, this is due to the fact that there were favorable conditions here. The floods of the Tigris and Euphrates rivers enriched the land with useful minerals. In the more northern regions of Mesopotamia, cattle breeding was more common. In addition to these activities, the ancient Sumerians were engaged in craft, traded. The following crafts were developed: weaving, pottery, construction, blacksmithing, carpentry, etc.