The relationship between the United States and the Soviet Union after World War II is best described as friendly.
tense.
neutral.
distant.

i think the answer's are a) b) and c)

the properties of a free-market system that determine what the out comes will be.

the archaeologist they study the cultures that lived in the past.   the also look for the patterns in the artifacts so that give them clues about how the people made and used them to live.

the historians uses letters,diaries, speeches, and photographs.