Hey there! It looks like you've asked a multiple choice question without providing your answer choices. Don't fret I've found them. They are:
<span>A) An Ice Age started and the planet got colder.
B) An Ice Age ended and the planet warmed up.
C) Humans were starving and needed more food.
D) Humans invented boats and could sail to Europe.
The correct answer is B. As the planet got warmer people wanted to move further north.</span>
Chose to sue his master's widow for his freedom. He argued that his master, John Emerson, escorted him onto free soil in Illinois and the Wisconsin Territory, so he'd legally—even if inadvertently—granted him freedom.
As a result of 9/11:
The World Trade Center in New York was attacked and destroyed, with many casualties. The Pentagon was also targeted, but the attack failed.
George Bush declared the <em>War On Terror</em>, putting us at war with every country in the Middle East, costing tens of thousands of lives and getting us nowhere (also we're <em>still</em> fighting, though now it's focused on ISIS too).
Airfields more than tripled their security, with the United States becoming one of the most heavily regulated airport places in the world
The correct answer is A) the Vice President.
The Vice President breaks a tie vote in the Senate.
The Vice president of the United States presides over the Senate or the Upper chamber of Congress. However, he is not allowed to vote in the sessions. The only time he can cast its vote is when he needs to break a tie. If for any reason the vice president of the United States can preside over a session, the one in charge of the Senate is the president pro tempore.
It was Lenin who was the leader of the Bolsheviks in 1917 during the November revolution, although Stalin was definitely part of the Revolution. He would later seize power and became a ruthless dictator.
