what causes the force that pushes magma from ...

what causes the force that pushes magma from the magma chamber through the pipe?\no gravity\no water flow\no expanding gases\no convergent boundaries

Answer

# Brief Explanations: Magma in a magma - chamber contains dissolved gases. As the magma rises towards the surface, the pressure decreases, causing the gases to expand. This expansion generates the force that pushes the magma through the pipe. Gravity would pull magma downwards, water flow is not the main force for this process, and convergent boundaries are related to plate - tectonic settings rather than directly pushing magma through the pipe. # Answer: C. expanding gases