What two rivers were important to the development of the Sumerian civilization? How did these rivers help the civilization grow?

Explanation:

The civilization of Ancient Mesopotamia grew up along the banks of two great rivers, the Euphrates and the Tigris. In the midst of a vast desert, the peoples of Mesopotamia relied upon these rivers to provide drinking water, agricultural irrigation, and major transportation routes.

A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia and Ancient Egypt, all grew up in river valleys.

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast