Lava with a higher content of has higher viscosity.
if a large explosion causes the magma chamber below a volcano to empty, the volcano can collapse and form a
shield volcanoes can form when less lava flows quickly away from a vent.
during an oceanic plate convergence, the plate will sink.
the west coast of the united state has features formed by
during the of two tectonic plates, magma wills the space between two tectonic plates.
the only volcanic activity that is not formed at tectonic plate boundaries is
and volcanoes are linked severe weather events.