Answer:
Step-by-step explanation:
Since farming provides more products than those who are farming can use, the excess can either be stored or made available to those who do not farm. That frees those people up for other tasks, such as making tools or fighting wars. Because of agriculture, standing armies developed among the stronger societies. Beginning in about 5500 B.C.E., the Sumerians[?] use of agriculture allowed them to expand their territory and become the world[?]s first empire.