Explain how the interaction between the primitive nomadic peoples and the Sumerians could be considered "business."

The answer is because the both trade all the time.

Explanation:

The interaction between the primitive nomadic people and the Sumerians could be considered as business because they were fond of trading things all the time through a system of trade by barter. The trade by barter system is such that the the Sumerians and the Primitive nomadic people would exchange goods or services without the use of money. In this case, the nomadic people learnt new skills and made new things to trade with the Sumerians. They would exchange things such as metals, animal skins for beads, pottery, glass etc in order to survive.