6.6

Identify and explain the importance of the characteristics of civilizations, including: (C, E, G, H, P) <ul><li>the presence of geographic boundaries and political institutions</li><li>an economy that produces food surpluses</li><li>a concentration of population in distinct areas or cities</li><li>the existence of social classes</li><li>developed systems of religion, learning, art, and architecture</li><li>a system of record keeping</li><li>technology</li></ul>