Laws passed during the 1920s, such as National Origins Act, limited and discriminated against which individuals? A. Mexican immigrants
B. Canadian immigrants
C. American citizens
D. Eastern and Southern Europe immigrants
(Nativism and racism in the 1920s)

People can not go in bigger groups than 15 for everyone. A pay cut of 15% for all mexican and canadian immigrants

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

a.   it resulted in widespread unemployment.