How did columbian exchange impact the old and new worlds

How did chris mccandless feel before and after going into the wild? i need with a compare and contrast slide for a project

What was one reason franklin roosevelt won the presidential election of 1932 a. franklin roosevelt was known for his humanitarian work . b. the hoover administration had not solved the country's economic problems. c. hoover did not campaign enough because he was working on the financial crisis.

What is the columbian exchange? o a. the changes that resulted from europeans settling in the new world b. the relationships that columbus and his men had with the natives they met o c. the ships that columbus bought with money from the king and queen of spain o d. the increase in the number of native american towns in the new world