Definition : (Geo, G. the Earth; Morph, G. Form, ology G. the science of) Geomorphology is the study of landscapes--It entails the systematic description of landforms and the analysis of the processes that create them.
Nuclear binding energy is the energy that would be required to disassemble the nucleus of an atom into its component parts. These component parts are neutrons and protons, which are collectively called nucleons.
Please note that the preceding figures discuss the lower limit, upper limit, and probable value for the gravitational binding energy of a planet. This binding energy is, in turn, the absolute lower limit for the energy that the Death Star must have imparted to Alderaan.