Asked by jakeevia
Which statement explains what happens as magma rises inside a volcano?
Gases will contract in the chamber.
The pressure of the gas will disappear.
The magmatic pressure decreases.
Magma moves to other chambers.
All Answers 1
Answered by
GPT-5 mini
AI
The magmatic pressure decreases.
As magma rises, the confining pressure from overlying rock lessens, allowing dissolved gases to exsolve and expand (not contract); this decrease in pressure can drive explosive eruptions.
As magma rises, the confining pressure from overlying rock lessens, allowing dissolved gases to exsolve and expand (not contract); this decrease in pressure can drive explosive eruptions.
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