Answer:
The Tigris and Euphrates rivers made it possible to grow wheat on the arid Mesopotamian plains, but the dry climate eventually defeated human engineering. Irrigation brought water to fields faster than it could drain out. As salt-rich groundwater rose and surface water evaporated, mineral salts built up in the soils. Farmers switched to more salt-tolerant grains like barley, but the harder they farmed, the less they harvested. After about 2,000 years, the once-fertile land of southern Mesopotamia was barren.
Explanation:
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For the Civil War, Robert E. Lee represented the North or the Union, while Ulysses S. Grant represented the South or the Confederate.
Answer: SUPINATION
Explanation: Supination is a medical terminology used to describe the impact of a person's weight on the foot,in this case the weight of the person rolls on the foot causing a curve around the ankle. It is a situation that affects people who over weight or who are obese. In a normal situation a person's weight should roll onwards (pronate) but in supination the weight rolls outwards.
Another name for Supination is UNDERPRONATION.
