The Cuban Missile Crisis was arguably the most dangerous conflict of the Cold War. This incident between the United States and Soviet Union almost lead to all out nuclear warfare. This was a result of the United States putting missiles in Turkey and the Soviet Union putting missiles in Cuba.
Over 13 days in October of 1962, President John F. Kennedy and Nikita Khrushchev constantly deliberated over an agreement on how to end this without warfare. The US agreed not to invade Cuba again and the Soviet Union agreed to remove their missiles in Cuba. The US would later remove their missiles from Turkey as well.
Answer: I'm almost 100% sure that the 2nd one is correct, but I would wait for another opinion as well.
Explanation:
Wages back then weren't good and families needed the extra paycheck.
Answer:
C) Contagious diseases spread to both Europe and the Americas
Explanation:
The Columbian Exchange had many positives for both sides of the Atlantic, but unfortunately it had some negatives too. The biggest negatives were the spreading out of diseases. Both in Europe and the Americas, multiple diseases were brought from the other side, and they had devastating effects. The Europeans were affected but not to a degree to become almost extinct, while the Native Americans almost died out totally because of the diseases brought by the Europeans.