The first true cities . relied upon rural agriculture for support relied upon agricultural techniques that arose during the green revolution relied upon urban jobs created by the industrial revolution generally improved the health of urban dwellers compared to people living in rural environments

Relied upon rural agriculture for support

Explanation:

The first cities in the world emerged in the Middle East, most specifically in the fertile crescent, a region that includes Mesopotamia, and the Levantine Coast.

These cities emerged because the surplus agricultural surplus from improved techniques allowed for the storage of food, and the development of the division of labor. These also caused the formation of the first governments, and the reproduction of social hierarchies.

i believe we're not a republic so that is a hard question