Yalta Conference is about the discussion on the action plan
when the war will end. During this conference, the motion to establish the UN
was set.
Potsdam Conference was the meeting of the three leaders at
that time, namely Stallin, Truman, Churchill. This conference added tensions
between the Soviet Union, and US.
Iron Curtain Speech set up cold was tension and was known as
the most famous speech during this time.
Mountains, rivers, climate, and rival tribes all influenced territory rights, hunting land and exploration.
Answer:
$25,000
Explanation:
Opportunity cost is the value of an alternative forgone. If he attends college, he will forgo $25,000 which he would have made if he did not go to college. Hence, the opportunity cost of Justin going to college is $25,000.
The most useful is documentary evidence. Things people have written. Old newspapers, personal accounts, even things like letters, bank records, govt. records, etc. For fairly recent history there are photographs and even films and videos.
But even writing only goes back about 6000 years. Before that there is archaeological evidence. From studying the debris of ancient civilizations historians can determine what their buildings looked like, what they ate, who they traded with, what they thought was
I believe the answer is A.
