Conductivity, resistivity of rocks. C. Having to do with age. Relative age, which speaks about the secession of events, e.g., for undisturbed layers of sediment on the sea floor where the youngest is on top, or for overlapping craters where the youngest is the one that is undisturbed. D. Having to do with rocks. E. Having to do with planetary motion.
Revolution refers motion about the sun.
F. Having to do with existence and condition of an atmosphere. Gases present, speciation with height, temperature, pressure and motion. Identification of rocks and minerals on planetary surfaces. Identification of gases in planetary atmospheres.