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Describe the major differences between civilizations in North America, Mesoamerica and South America and give some explanations for these differences. 

Thesis: There are many major differences between the civilizations that developed on these three important land masses. 

Thesis, geographical differences: North America is forest in east and desert in west, south america is rain forest in east, indigenous people, no farming in west, andes mountains, Mesoamerica: unites with similar culture. 

Describe the Political organization Of each civilization, in each location. South america is Inca, Mesoamerica is Aztecs, and North America is Anasazi. 

Describe the Moral code and economic system f each. 

Describe the Intellectual tradition of each. 

Conclusion: restate thesis