Answer:
An appropriately loud response to fear, excitement, or your team scoring.
I'm the source of all emotion, but I'm caged in a white prison.
What is often returned, but never borrowed?
What never asks questions but receives a lot of answers?
Where is the ocean deepest?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.