How To Use Mt. st. helens In A Sentence

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• When the glacial ice on Mt. St. Helens rushed down the sides of the mountain and created mudflows, potential energy in the ice became active and major changes took place.
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• We were told at the ‘visitor centre’ that Mt. St. Helens had a ‘Pyroclastic flow’, which is an eruption of volcanic ash and pumice as opposed to molten lava.
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