The Neolithic or Agricultural Revolution forever changed human societies. Why did humans start to abandon hunting and gathering and begin to farm in settlements? What changes did this bring with it?

The correct answer to this open question is the following.

Although there are no options attached, we can say the following.

It is true that the Neolithic or Agricultural Revolution forever changed human societies. Humans started to abandon hunting and gathering and begin to farm in settlements because they developed agriculture techniques and settled next to rivers. This brought many changes. For instance, we have the case of the oldest civilization of planet earth, the Sumerians.

Sumerians settled in the middle of the Tigris and Euphrates Rivers in modern-day Iraq. There, they understood the flooding and the rivers and grew crops due to the fertile soil of the land.  They established important city-states in the Middle East region such as Lagash, Uruk, Kish, Ur, and Nippur.