In 1–2 sentences, compare the methods used and the reasons behind how Egyptians and Mesopotamians changed their environments to suit their needs.(2 points)

Egyptians primarily relied on the predictable flooding of the Nile River to develop irrigation systems and agriculture, using the annual inundation to enrich their fields and support a stable society. In contrast, Mesopotamians faced more erratic water sources from the Tigris and Euphrates rivers, which led them to develop complex irrigation techniques, drainage systems, and city-states to manage water supply and mitigate flooding, reflecting their need for control over a less predictable environment.