What is the cause of polarity in water molecules

Agricultural societies are large communities that are organized around farming. These are common all over the world.

The element that allowed these societies to develop in the first place is a fertile location. Good soil and a constant source of water usually accompanied the first agricultural society. As the land is utilized, food production increases, and with this, the population of the place increases as well. As the population gets larger, the community becomes more specialized and the division of labour becomes more complex.