Name one positive impact of the Columbian Exchange and one negative impact

A positive effect of the Columbian exchange was the introduction of New World crops, such as potatoes and corn, to the Old World. A significant negative effect was the enslavement of African populations and the exchange of diseases between the Old and New Worlds.

Explanation:

A positive effect of the Columbian exchange was the introduction of New World crops, such as potatoes and corn, to the Old World

Explanation:

A significant negative effect was the enslavement of African populations and the exchange of diseases between the Old and New Worlds.

the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]