What were indigenous communities like before the Columbian Exchange?

Prior to contact, indigenous populations thrived across North and South America. There were millions of people (approximately 35-75 million) 2 living in the Americas, some of whom lived in large urban areas like Tenochtitlan and Cusco, among the largest cities in the world at the time.

Explanation:

1. where does the energy of a nuclear power plant come from?

d) political bosses should not hold office