In ancient Mesopotamia, which outcome occurred as irrigation canals expanded, especially near Uruk?

💡 Explanation

Increased soil salinization occurred via capillary action concentrating salts because the water table rose with extensive irrigation. Salts accumulated at the surface due to evaporation, therefore reducing fertility and crop yields, rather than improving navigability or flood control.

• Which agricultural outcome resulted from terrace construction by the Wari civilization in the Andes?
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• Which agricultural outcome benefited pre-Columbian maize cultivation within terrace systems?
• Which risk increases when Byzantine silk floss quality declines during sericulture?
• Which effect arises when firing repeated volleys from identical ancient Chinese crossbows?
• Which limitation constrained maize cultivation spread northward from Mesoamerica into North America before 1000 AD?