Why did andrew jackson hold his hat up? what does it symbolize?

How did the russian revolution impact world war l ?

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.

Marcy tests a solution with a strip of blue litmus paper. the paper turns red. the solution is acidic basic neutral