Q. What is the official currency of the United States?
Q. Which mountain range runs along the eastern part of the United States?
Q. What event marked the beginning of the U.S. involvement in World War II?
Q. What is the nickname for the central region of the United States known for its agricultural productivity?
Q. Which document serves as the supreme law of the United States?
Q. In which city did the Boston Tea Party take place in 1773?
Q. Which U.S. state is known as the "Lone Star State"?
Q. Who was the first President of the United States?