The Columbian exchange affected the size of population enormously. Exchanges of plants, animals, diseases and technology transformed European and Native American ways of life. This exchange impacted the social and cultural makeup of both sides of the Atlantic. Increased mortality rates and education are a few examples of the effect of the Columbian Exchange.
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An accomplishment of the Lewis and Clark expedition was that it recorded information about nature and geography.
Lewis and Clark were not able to find a water route across the continent and did not force native people out of US territory. Neither did they acquire the Louisiana Territory, the territory was acquired by Thomas Jefferson.
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The correct answer is A. Slavery was not an issue
In the beginning of the 1800's slavery was still a big thing in the south even though the North disproved of it. That is one of the main reasons why the civil war was fought and why the emancipation proclamation was made to free the slaves from rogue states.
The soviet leader was deeply saddened by this turn of events and wanted to help the people so the answer is mikhail gorbachev<span />