These may form where rock has been dissolved

Gettysburg address question what do you notice about the length of this address? why do you think lincoln made it so short?

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.

When deciding on an apartment what should you do first?