What is preferential discharge of ions

During the process of electrolysis, ions that are formed will get discharged to reform neutral atoms at the state of electrons, whereas the preferential meaning which in case one or more kind of cations and anions in the electrolyte, the one with the higher concentration or at a lower position activity will get discharged first.

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

c- cold periods in earth's history during which glaciers covered much of the surface.

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