It was that "Flat land with poor drainage led to salinization from irrigation waters," that was a factor in the decline of Sumer, since this led to a build up of salt in the soil, which greatly reduced agricultural output.
C) Individual States
A guiding principle of the Articles was to preserve the independence of the states. The Articles created a weak central government, therefore they only received the powers which previous colonies had recognized as belonging to the parliament.
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