Answer:
By enabling people to settle in one place and form more complex social structures
Step-by-step explanation:
Food surpluses led to the development of civilizations by enabling people to settle in one place and form more complex social structures. With a reliable source of food, people were able to focus on other aspects of life, such as technology and the arts, instead of constantly searching for food resources.
Food surpluses also allowed for the emergence of a new social class of people who were able to devote more time to organizing and leading society. The development of agriculture and domestication of animals were key to the formation of civilizations, and food surpluses provided the basis for these activities.