which occurs just before a volcanic eruption?\nlava flows onto the sides of the volcano.\nthe expanding…

which occurs just before a volcanic eruption?\nlava flows onto the sides of the volcano.\nthe expanding gases push magma through the pipe.\na pocket of magma forms beneath the volcano.\nnew rocks are formed as lava hardens.

which occurs just before a volcanic eruption?\nlava flows onto the sides of the volcano.\nthe expanding gases push magma through the pipe.\na pocket of magma forms beneath the volcano.\nnew rocks are formed as lava hardens.

Answer

Brief Explanations:

Antes de una erupción volcánica, los gases en la magma se expanden y empujan la magma a través del conducto volcánico hacia la superficie. La lava fluyendo por los lados es durante o después de la erupción, la formación de un depósito de magma es un paso previo más temprano y la formación de rocas es después de la erupción cuando la lava se endurece.

Answer:

The expanding gases push magma through the pipe.