Answer:
hope this helps
Explanation:
The Columbian Exchange — the interchange of plants, animals, disease, and technology sparked by Columbus's voyages to the New World — marked a critical point in history.
Do to the 9/11 attacks by al qaeda.
Nobody chooses the rulers. If its through a system of heredity, when the rulers die their children take over.
<span>The nation's largest railroad center was found in Chicago. Chicago is considered as the most important center of railroads in North America. Chicago has been the most significant interchange point of commercial transportation between the nation’s great railroads.</span>
