Carefully study the charts showing how much it cost to raise a child in 1960 and in 2015. What conclusions can you draw from this data? (Site 1)

The correct answer is b

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 !