10. Use the graph to answer both parts of this question about these three minerals.

Acurve connects the data points that are plotted. (physical science chapter 11 motion)

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system

Which describes increasing the efficiency of energy resource