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Practice Speaking: Read Aloud
ID: #52037
Long Glaciers and Volcano
The fine details of how glaciers are linked to volcanic eruptions are unknown. But volcanologists theorize pressure is key. The idea is the weight of large ice sheets compresses crust and mantle below. That closes up channels within the rock through which magma travels up. It leaves less room for surface water to make its way down into the rocks.
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