Why is food surplus of food necessary to have specialized workers?

Explanation:

Food surpluses provided the opportunity for specialization—the development of skills in a specific kind of work. An abundant food supply allowed some people to become expert at jobs besides farming. Some city dwellers became artisans—skilled workers who make goods by hand.

states began imposing duties on each other's goods. congress had no way to raise money for an army to expel them.

it was a act of seld fesnse more over it was a peace treaty between the fogein contunries.