1. How does this map relate to the settling of the Americas in prehistoric times?

if you are talking about current time the answer is no

if you are talking about when the colonies were developing the answer is yes

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.