What is the number one cause of global warming?
a) animal agriculture
b) increase of carbon dioxide emissions
c) unenvironmental human activity
d) none of the above

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.

Which statement best completes the diagram of the ways the different branches of government can limit each other's powers?

When recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous years?