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.
Answer:
A - send the budget to the senate for approval
Explanation:
The governor of a state sends the budget to the senate of a state for proposal before it goes before the state legislature.
Answer:
B. They practiced Islam and traditional native beliefs
Self defense because in order for them to seem more powerful and they also needed i to gain more protection.