a lot
The pressure and heat in the volcano. When to much pressure builds it makes a eruption.
because the pressure is caused by the plates grinding together if that stops no pressure
A volcano can explode when pressure builds up inside it due to trapped gases and magma. This pressure can be released explosively when the volcano erupts, causing an explosion.
a lot
The amount of pressure that pushes up the magma in a volcano
A volcano can erupt when the pressure from below becomes too great.
Pressure and magma build up beneath the surface of a dormant volcano. This buildup can result in an eruption if there is a sudden release of pressure or new magma intrusion into the volcano's system.
magma rises up out of a volcano by the build up of pressure
A volcano " vents " gas when pressure builds up
Pressure.
A volcano is a mount (or mountain) that has magma in it. A volcano also is like an earthquake releasing pressure from the inner core of the earth. If there is a lot of pressure to be released this will cause the eruption to be bigger and more destructive, like the volcano Mount Tambora that erupted in 1815.
A volcano is the visible effect of pressure building up in the semi-molten mantle below the surface. This pressure can cause lava and gases to erupt from the opening in the top or sides of the volcano. Therefore, a volcano occurs on the earth's crust (surface).