Explanation is in the file
tinyurl.com/wpazsebu
The answer is deregulation.
During the Carter administration, the government tried
deregulating the transportation sector. Because of this, they were able to
lessen the barriers to entry in to the country and conduct a more competitive
business for the transport service providers in the country.
Answer:1-infectious Eurasian diseases
2-attempts of assimilation (and Manifest Destiny)
3-relocation attempt (Indian Removal Act of 1830)
4-diminished food supply for nomadic tribes
5-the introduction of horses and other animals to the new world (through the Columbian Exchange)