For history why might most of the major pre-columbian mesoamerican civilizations have existed in the areas of southern mexico?

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This term refers to events that occurred during the great depression where panicked customers withdrew their deposits in fear that the banks were going to close and their investments would be lost. example: much of the great depression's economic damage was caused by nationwide

By the year 1900 new york city had more than just people of british heritage. there were more people of italian descent than the cities of florence, genoa and venice put together. it was home to more irish than dublin (the capital of ireland) and more germans than hamburg. joining them were many thousands of people of polish, hungarian, and czech descent. what term best describes new york cities changing culture? a a pot of chili b a bowl of sugar c a cup of coffee d a slice of cheese