The answer is Federalism if you are using Apex
This is what you’re looking for I think. Hope this helped.
The Declaration of Independence is divided into five parts: the preamble, the statement of philosophy, the grievances, the operative words, and the statement of the signers.
Answer:
Scientists believe that Mashkan-shapir's collapse was caused in part by destruction of the fields by mineral salts. When mineral salts concentrate in the upper levels of the soil, it becomes poisonous for plants. In Mesopotamia, irrigation was essential for crop production.\