Final answer:
The plow was the invention that most affected the food supply in Sumer. The plow was the invention that most affected the food supply in Sumer, enabling the cultivation of previously uncultivable land and significantly increasing agricultural yields.
Step-by-step explanation:
The invention that most affected the food supply in Sumer was the plow. The Sumerians were the first to develop and use the plow, which allowed for greater yields in agriculture. By breaking up the soil and turning it over, the plow made it easier to plant and cultivate crops, leading to increased food production. This technological innovation played a crucial role in expanding agricultural production and sustaining the growing population in Sumer.
The plow was the invention that most affected the food supply in Sumer, enabling the cultivation of previously uncultivable land and significantly increasing agricultural yields.
The invention that most affected the food supply in Sumer was the development of the plow. This crucial innovation, which occurred after 4000 BCE, greatly enhanced agricultural yields by making it possible to cultivate larger areas of land, including plots with rocky soil or hardened earth that were previously unsuitable for farming. Along with the use of irrigation techniques and the establishment of crop rotation practices, the plow helped to significantly increase food production. These agricultural advancements supported population growth and the flourishing of cities by providing a stable and abundant food supply for the Sumerian civilization.