It’s there conductivity meaning they are conductors, glad I helped!
ATP is short for adenosine triphosphate, which means that there is an adenosine molecule (A) (don't worry too much about that for the moment) with three phosphates (P) joined onto it. ATP could be written at APPP. ADP stands for adenosine diphosphate, which means the A has 2 phosphates joined to it, and might look like APP.
Therefore,
APPP -> APP + P
ATP can become ADP plus a free P (because one broke off)
Non-foilated metamorphic rock?? maybe
So that they can prove the other scientists views wrong and develop a new theory in which there is more sense and credibility.
