Option: A. supplying water to fields with dams and canals.
Explanation:
The Mesopotamia economy was based on agriculture. They focused on the cultivation of cereals (barley). Because of the harsh climate, the arid soil and little rain, there was a requirement for large scale irrigation through dams and canals. Canals built to bring the water for the fields to grow crops. Canal also divert water direction, which limits the damage from floods.
North is colder and South is hotter. One is up and the other one is down. They both lead to directions
The beginning of WWII. After Germany invaded Poland, Britain and France joined the war, starting off WWII.
Amendments are often necessary because of the length of state constitutions, which are, on average, three times longer than the federal constitution, and because state constitutions typically contain extensive detail. In addition, state constitutions are often easier to amend than the federal constitution.
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