How did the division of labor lead to the development of trade?

The spanish class system placed people in the top class primarily based upon how much american blood a person had. how much spanish blood a person had. where a person worked. whom a person married.

What did washington mean when he said patriotism leads to unity

How were the okanogan highlands formed? a. by subduction, which caused huge folds in earths surface b. as a result of retreating glaciers carving great valleys into the earth c. when molten rock from under the earth approached the surface d. when the collision of volcanic island chains and ocean rocks formed new earth