Trade developed early and was very important to the people of sumer because they?

Sumer is the earliest civilization in Mesopotamia flourished with the help of trade with the neighboring regions. Trade helped the Sumerians by gaining them wealth and rich. Sumerian established in the valleys of the Tigris and Euphrates helped the farmer in cultivating crops and grain. The people acquire the resources by exporting grain, textiles, and oils to foreign cities and imported wine, timber, stones and precious metals.

cruel and illegal punishments

that would be the correct answer