Asap need ! which statement about genghis khan is true?
a he was the first emperor of china who began construction of the great wall.
b he united the mongol tribes and became known as the "ruler of all men."
c. he constructed the important east west trade artery known as silk road
d, he was killed in battle while fighting the forces of the song dynasty

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.