The correct answer to this open question is the following.
Although there are no options attached to further context or reference, we can say the following.
The characteristics of civilization are they have cities, a form of government, the presence of religions, solid culture and art, defined social structures, record keeping of time and events, education, and the presence of certain kinds of technology that allows the civilization to prosper.
The turn of civilizations can be problematic in that the evolution of man and its social structures is not an easy task to accomplish because humans have different interests regarding politics, and power. These interests sometimes clash with each other and problems arise. There are many different versions of what is good for civilization.
The oldest civilization on earth, according to historians, is Sumeria. This civilization settled in between the Tigris and Euphrates Rivers in the Middle East region, modern-day Iraq.
It helped the US economy grow, because it gave the US more of a reason to industrialize like the British. The US needed to mass produce guns and ammunition in order to recreate their military. The mass production of products led to the Industrial Revolution years later.
Answer:
It provided irrigation for the region and important flood control for run off
Explanation:
it provided provide power generation, irrigation, flood control, stream flow regulation for fish migration, navigation, and recreation
so the only answer option would be the third :)