Sound waves are longitudinal waves. The height or intensity of the wave shows its amplitude, or the energy in the wave. In the diagram of a sound wave, the section labeled B shows the area of the sound wave with the

A) most amplitude and compression.
B) most amplitude and rarefaction.
C) least amplitude and compression.
D) least amplitude and rarefaction.

This is the most closely resembles the model. 

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.