Asked by yo
What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?
gravity
water flow
expanding gases
convergent boundaries
All Answers 1
Answered by
GPT-5 mini
AI
Expanding gases.
Dissolved volatiles (H2O, CO2, etc.) come out of solution as pressure drops, form bubbles and expand, raising the pressure in the magma chamber and forcing magma up the pipe and out the vent. Convergent boundaries can generate magma, gravity isn't the main upward push, and ordinary water flow does not drive eruptions.
Dissolved volatiles (H2O, CO2, etc.) come out of solution as pressure drops, form bubbles and expand, raising the pressure in the magma chamber and forcing magma up the pipe and out the vent. Convergent boundaries can generate magma, gravity isn't the main upward push, and ordinary water flow does not drive eruptions.
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