Destroyed Europe--the ape is representing Germany and he has taken a lady (representing liberty). He is stepping onto the shores of America with Europe in the background destroyed.
This poster encourages support for US entry into World War I to protect the values of liberty in America. It suggests that Germany is made with power and will not stop with Europe but will continue to the US to destroy America as well.
Well I do not really know what time period you are talking about but, if you are talking about before TV I’d say doing things like listening to radio, playing games, and hanging out with others.
If your question is referring to a popular form of entertainment for the Americans at home during World War II, then the correct answer is music from Swing bands, Radio, movies, and musical plays.
The Government of the United States considered important to maintain the moral of the citizens during World War II. For instance, the U.S. Office of War Information controlled the features of the movies in order to maintain the hight spirit of the people. U.S. citizens also liked going to the Dance Halls or Ballrooms in order to listen to music and dance with the music of famous orchestras like the Glenn Miller’s orchestra.
They contribute because
Food gives supplies to the soldiers, and railroad tracks help get this supplies to soldiers very quickly and efficiently.
hope it helps youu