Akademik

a process existing in or produced by nature (rather than by the intent of human beings)

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the action of natural forces

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volcanic activity

↑radiation, ↑absorption, ↑acidification, ↑adiabatic process, ↑aeration, ↑antiredeposition, ↑capture, ↑centrifugation, ↑chemical process, ↑chemical change, ↑chemical action, ↑chromatography, ↑concretion, ↑condensation, ↑convection, ↑curdling, ↑clotting, ↑coagulation, ↑decay, ↑demagnetization, ↑demagnetisation, ↑desorption, ↑diffusion, ↑dissolution, ↑disintegration, ↑distillation, ↑distillment, ↑drift, ↑effervescence, ↑electrophoresis, ↑cataphoresis, ↑dielectrolysis, ↑ionophoresis, ↑establishment, ↑ecesis, ↑extinction, ↑extraction, ↑feedback, ↑filtration, ↑flocculation, ↑flow, ↑formation, ↑fossilization, ↑fossilisation, ↑geological process, ↑geologic process, ↑hardening, ↑solidifying, ↑solidification, ↑set, ↑curing, ↑inactivation, ↑ion exchange, ↑ionization, ↑ionisation, ↑leach, ↑leaching, ↑magnetization, ↑magnetisation, ↑magnetic induction, ↑materialization, ↑materialisation, ↑nuclear reaction, ↑opacification, ↑oscillation, ↑oxygenation, ↑pair production, ↑pair creation, ↑pair formation, ↑phase change, ↑phase transition, ↑state change, ↑physical change, ↑precession of the equinoxes, ↑release, ↑saltation, ↑scattering, ↑sericulture, ↑sink, ↑soak, ↑soakage, ↑soaking, ↑softening, ↑sorption, ↑source, ↑stiffening, ↑rigidifying, ↑rigidification, ↑stimulation, ↑succession, ↑ecological succession, ↑survival, ↑survival of the fittest, ↑natural selection, ↑selection, ↑synergy, ↑synergism, ↑temperature change, ↑transduction, ↑transpiration, ↑vitrification