Compare the emergence of advanced civilizations in meso and south america with the four early river valley civilizations.
unlike the native americans, mesopotamians had to trade for which of the following resources?
seeds
fish
stone
clay

Clay. Mesopotamia was a region which did not have many natural resources. ... there needed to trade with neighbouring countries in order to acquire the resources they ... to foreign cities and exchanged for timber, wine, precious metals and stones.

They had strained relationships with colonists but good relationships with american indians