Ray has alzheimer's disease. his family has found him going outside barefoot in winter, walking through the neighborhood half-dressed, and lighting the stove but then walking away. ray's behaviors are often found in the stage of alzheimer disease.

Moderate Alzheimer's disease (middle-stage)

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 !