Which cultural activity in early north america allowed larger groups of people to live together?

Describe the cultural component "innovation." give two examples. give an example of the cultural component "cultural universals."

What if the united states, mexico, and canada took the eu’s example and joined to forms north american union ? based on your knowledge of the europe union, describe two setbacks or hurdles that this idea might face

Recently, there has been pressure to loosen clean air standards. use economic arguments to support or oppose this proposed action.