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← HistoryWhich outcome results when the Euphrates River floods ancient Sumerian levees?
A)Silt deposition increases soil fertility✓
B)Increased canal erosion reduces siltation
C)Salt accumulation improves barley growth
D)Levee breaches cause uniform salinity
💡 Explanation
Silt deposition enriches the soil because the flooding river carries fertile sediments, facilitating soil nutrients. The alluvium deposition mechanism resulted in fertile land for farming, therefore improved yields rather than salinity because salts would require evaporation buildup; levees minimize rather than cause salinity.
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