Answer:
The Correct Answer is
The exchange permanently changed the natural and human environments
Explanation:
Columbus underwent deep voyages and discovered present-day America. He also discovered the marine route which associated the old Eastern world to the new Western world.
After the establishment of the Sea route there was an exchange of goods with other countries started. But the negative impact was that people of Eurasia were not healthy with high levels of immunity.
The interchange of food supplies initiated the arrival of dangerous diseases too and a major part of the European, Native American, and Asian population died causing a shortage of human labor, this gradually leads to the slavery of Africans.
The best concise answer to this would be the Louisiana Purchase as it accounts for a large portion of land that is approximately half to a third of the current United States, but at the time more than doubled the size of the country.
The best answer should b 2
Ruthford B. Hayes is the 19th president.
Answer:
A. is your answer for this question