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Volcanic Explosivity Index, a comparative measurement of volcanic eruptions based on the amount of ejecta and other observations (if possible).
Concerning the processes by which living organisms produce minerals, in addition to questions about types of mineral and advantages/disadvantages of so doing.
Questions relating to hydrofluoric acid, for example its generation in nature or its use in lab contexts such as rock digestion.
applied to improve the output of models used for numerical weather prediction.
Volcanic Smog formed from volcanogenic SO2 and dust particles.