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Which of the following is NOT an assumption that economists make when using the model of perfect competition?
Agriculture
The practice of cultivating soil, growing crops, and raising livestock for food, fiber, and other products.
Soviet Union
A former federation of Communist republics that existed from 1922 to 1991, officially known as the Union of Soviet Socialist Republics (USSR).
Water Scarcity
Water scarcity is a situation in which the available water supply is insufficient to meet the demands of water use within a region.
Runoff
The portion of rainfall, melted snow, or irrigation water that flows across the ground's surface and is not absorbed into the soil, often reaching rivers, lakes, and oceans.
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