Explanation:
This reduction in overlying pressure, or decompression, enables the mantle rock to melt and form magma. Decompression melting often occurs at divergent boundaries, where tectonic plates separate. The rifting movement causes the buoyant magma below to rise and fill the space of lower pressure
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Answer:
tremendous pressure
As a volcano erupts what force pushes magma out of a volcano onto the surface? Dissolved gases under tremendous pressure are trapped in magma. The FORCE OF THE EXPANDING GASES pushes it through the pipe until it flows or explodes out of the vent
Explanation:
