Replenish the soil and provide water for the crops.
Mesopotamia had flooding that was unpredictable, and that flooding could make the settlements have to make a run for it. Unlike the Nile's yearly fall flooding, the Mesopotamian rivers were very unpredictable.
The Euphrates and Tigris River floods brought down silt which provided fertile soil, renewed yearly, and the rivers also provided the water for irrigation.
because of the overflow of the Nile, the Egyptian soil became rich and the farmers became happy because their crops could grow, the ancient Egyptians depended on the Nile's flood yearly
$5.5 mill
Depends yearly, check the farmers almanac
How many farms are in Vermont and how much does an average Vermont farmers earn yearly?
The flooding of the Tigris and Euphrates rivers, yearly.
yearly flooding that deposited rich soil
The plains were dry - there was little rainfall, so it qualified as a desert. The yearly river flow from rains in the highlands was trapped in dams and canals and used for irrigation, and the floods washed silt down which replenished the farmland. In poor rain years in the mountain headwaters, there was drought, poor crops and famine.
built the great wall of china.
The average yearly rainfall for streams and rivers can vary greatly depending on location. In general, streams and rivers in temperate regions receive between 30-60 inches of rainfall annually. However, this can be higher in tropical areas and lower in arid regions.
Economy. of Egypt ( section land , agriculture. and crops.)