What do archaeologists suggest may have contributed to the decline of the earliest city-states in Mesopotamia, present-day southern Iraq, and southwestern Iran?

Question

Quizplus · Accepted Answer

Salinization is the process by which soil becomes too salty for plants to grow. This can happen when water evaporates from the soil, leaving behind salts. In Mesopotamia, salinization may have been caused by the irrigation of crops. When water is used to irrigate crops, it can dissolve salts from the soil. These salts can then be deposited on the surface of the soil, making it too salty for plants to grow.

What Do Archaeologists Suggest May Have Contributed to the Decline