Question

draw conclusions how did the tigris and euphrates rivers help sumerian civilization develop?

Explanation:

The Tigris and Euphrates rivers provided water for irrigation, enabling agriculture. They also facilitated transportation and trade, and the fertile soil from annual floods supported a growing population, which in turn allowed for the development of complex social - political structures and cultural achievements in Sumerian civilization.

Answer:

The Tigris and Euphrates rivers provided water for irrigation, fertile soil from floods, and a means of transportation and trade, all of which contributed to the development of Sumerian civilization.