What caused the great waves of immigration from Europe to the United States in the mid-1840's? a. the yearning for liberty

b. the monarchy of Europe ordering people to leave

c. the influence of Karl Marx

d. the failure of Europe's crops

Gettysburg address question. lincoln uses the images of birth and rebirth in this address. why?

How have the changes in china's laws affected its economy?

Bonus question: according to wikipedia, in chinese philosophy yin and yang "describes how seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent." what are some examples from the story that amy tan may have intentionally incorporated elements of yin and yang philosophy into this story? select 2.