Helps me solve this problem please

Why did metternich think nationalism threatened the austrian empire?

Plz . explain what shopping was like in london during the early 1900s. how does this differ from the modern shopping experience?

Me! why was marbury v. madison such an important case? a. it confirmed that the supreme court was more powerful than congress but less powerful than the president b. it confirmed the authority of the supreme court to review a law in to determine whether or not that law is constitutional. c. it confirmed the authority of congress to increase or decrease the power of the supreme court. d. it gave the supreme court the power to confirm federal judges.