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Use "vulcanicity" in a sentence
"To anyone who has never seen the legacies of past vulcanicity at close quarters, what more awesome and eye-opening introduction could there possibly be?"
"Cotopaxis, and Kilaueas in magnitude, simple pinheads on the moon, have opened their tiny jaws in weak and ineffective expression of the waning energies of a still later epoch, which followed the truly heroic age of lunar vulcanicity."
"Some people ‘know ‘ aliens are here other ‘know’ vulcanicity is the cause of the warming."