Name two animals that arrived in North America for the first time as a result of the Columbian Exchange.

horses,cattle,sheep, goats,pigs

Explanation:

before the natives had llama and alpacas but no other animals wieghing 100 lbs

D. Tighter federal oversight laws and restrictions.

After an environmental tragedy like this occurs, the government tends to impose tighter laws and restrictions to ensure it does not happen again. This could be a positive externality for the national environment. It is unlikely that the situation will lead to more funds being given to pro-business political candidates, especially if they were involved in the accident in any way. Moreover, there is no obvious reason for the leak to lead to more oceanic research. Finally, the interest among students in the humanities will not necessarily improve as the incident has nothing to do with the humanities.