Answer:
1) Hunter and Gatherers They followed herds of animals and gathered food from the earth. Hunters and gatherers of nuts, berries, and other types of food. They follow the herds of animals.
2) Complex Civilization Surpluses of food allowed people to save for the future. Public work such as building an irrigation system, roads, bridges, and city walls for defense.
3) Some people choose to live in vibrant city centres, some in leafy suburbs, and these choices are the result of a complex set of decisions, trade-offs, while Current city centre residents accept high housing costs, and high levels.
Explanation: