Which of these rivers is one of two major waterways that feed into the aral sea?
a. amu dar'ya
b. yellow river
c. danube river
d. volga river

the world may never know

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".