The geography of the fertile Crescent affected the growth of mesopotamian civilizations by?

Tigris and Euphrates

This initially made farming difficult. Two major rivers in the region -- the Tigris and Euphrates -- provided a source of water that enabled wide-scale farming. Irrigation provided Mesopotamian civilization with the ability to stretch the river's waters into farm lands.

the section of the chart that represents a point at which a bill needs approval from a majority of people in both chambers to advance is j, as this is the only section before the bill becomes law which has both rows (symbolizing the chambers) converging into one, meaning that the two parts of the congress have to approve of it before it can march on with the process.