Uh, I think you got the wrong subject. This is <em>History, </em>not Math.
For the Louisiana purchase question, it more than doubled the size of the united states. As for the second question I believe the answer would be "Thomas Jefferson was eager to explore the west to ensure the survival and prosperity of the United States"
Cultural unity was less apparent than its diversity, Africa is home to 2000 distinct languages.
Answer:
European colonization, migration, missionaries, and trade
Explanation:
North and South Korea have grown apart as a result of their vastly differing ideologies. North Korea is a communist country with very strict restrictions on the movement of its citizens. The North Korean regime is well-known for its cruelty. South Korea, on the other hand, is a democratic country with an open-market economy. In a nutshell, both North and South Korea have radically different political and economic systems. They have been two nations for over sixty years.