How has the u. s. economy changed over the past 50 years?

Which of the following is one example of an ideological conflict that became one of the causes of world war ii?

Two gymnastics teams are intense rivals. the first team has started recruiting new gymnasts from different cities and even foreign countires in an effort to build a stronger team. after learning this, the secondteam begins its own recruitment campaign to find better gymnasts. over a period of months, each team recruits dozens of players, each time trying to find a better recruit than its rivals most recent addition. which idea from the cold war is most similar to this scenario

How does the existence of a site like catus hill demonstrate the challenge that archaeologist face when making theories?