The Kyoto Treaty does not undermine the United States sovereignty because it does not have anything to do with such. It was a treaty that asks committing State parties to reduce greenhouse gas emissions because global warming does exist and it is caused by CO2 productions done by human activities.
I think it is C change in climate revealing passageways for migration. Because early humans started in africa and went from there to everywhere
I would have to say the answer is 6
Answer: I believe A is the answer, but it could be B
Explanation: The XYZ affair raised anti-French sentiment which caused the passage of the Alien and Sedition Acts. This was one of the most unpopular pieces of legislation ever passed by Congress. It cost John Adams re-election and allowed Thomas Jefferson to paint him as a monarch.