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Leya [2.2K]
2 years ago
11

Which geographic factors contributed to the decline of Sumer? Choose all answers that are correct. A. Irrigation of the crops le

d to salinization of the soil. B. Sumer was located on a flat plain that provided no natural barriers to invasion. C. Mountains made agriculture difficult. D. The land became too swampy to grow adequate crops.
History
1 answer:
Allisa [31]2 years ago
8 0
It's A
Irrigation was overused, the soil didn't get any rest (crop rotation is a younger invention), the result was salinization of the soil, which led to decline of Sumer.
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