To clarify the states' rights<span />
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A positive effect of the Columbia exchange was the introduction of new word crops, such as potato’s 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
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Assuming you meant slave-owners some used biblical passages to justify it, and some just thought that blacks were a lesser race overall
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please mark brainliest :)
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The gilded age was a period of economic growth as the United states jumped to the leas in industrialization ahead of Britain. the nation was expanding it's economy into new areas, especially heavy industry like factories, railroads, and coal mining. hope this helps :)