How does the world view the u. s. and why does that vary in different countries or regions?

America has been perceived by the world as the most powerful nation in economic and military positions. And the American people are considered to be most optimistic and hardworking. But with rising of Islamic fundamentalism, this image has been put into question especially in the middleeast where they perceive America as the face of an oppressor.

To solve their problems, mesopotamians used irrigation, a way of supplying water to an area of land. to irrigate their land, they dug out large storafe basins to hold water supplies these ditches brought water to the feilds. to protect their feilds from flooding, farmers built up the banks of the tigris and euphrates.hope ths !