The molten rock that erupts from volcanoes ultimately comes from Earth's mantle, which is a very hot layer of rock. It is hot enough that some if its rock can melt and rise through the crust.
A volcano may violently eject lava depending on the geology of the volcano. There could be a sudden injection of water deep in the tube, or there could be a sudden release of pressure in the magma pool below the tube, or other things that might cause the pressure to rise rapidly. Under those conditions, lava won't flow out but will be ejected with force.
Because the volcano is created from the upwelling of magma from the mantle at weak spots in the crust. Magma, once above the ground, is called lava.
Volcanoes are created by layers of ash and lava eruptions
a lot of lava comes out of volcanoes .
lava.
lava
Cinder-Cone Volcanoes and Composite Volcanoes
No, volcanoes do not need lava to be volcanoes.
NO, volcanoes make lava.
Volcanoes are created by layers of ash and lava eruptions
a lot of lava comes out of volcanoes .
lava.
lava
Cinder-Cone Volcanoes and Composite Volcanoes
volcanoes will erupt and let out lava then the lava will harden and that will be new land.
Lava
lava
no
magma lava