How did the america’s isolation from afro-eurasia contribute to its state formation, culture and expansion?

It created Nationalism in the union, which made Americans more independent of Europe through the Morne Doctrine, which stated that the New World was off limits to European Canalization. Which allowed American to expand westward. and as I said closing the old world from coming into the new world which caused the U.S to develop there won culture.

Explanation:

b. africa to the americas

explanation:

b toward the volcano.landward. the landward side of something is the side nearest to the land or facing the land, rather than the sea.