OpenStudy (anonymous):

Which geographic factors contributed to the decline of Sumer? Choose all answers that are correct. A. Mountains made agriculture difficult. B. Irrigation of the crops led to salinization of the soil. C. The land became too swampy to grow adequate crops. D. Sumer was located on a flat plain that provided no natural barriers to invasion.

3 years ago
OpenStudy (anonymous):

@goldendragon01 @justsmile531

3 years ago
OpenStudy (anonymous):

@me

3 years ago
OpenStudy (anonymous):

b d

3 years ago
OpenStudy (goldendragon01):

he is right

3 years ago
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