Volcanoes are mountains with a break in the earth's crust through which they expel magma, ash and gases from the interior of the earth.<br /><br />When they erupt, the lava expelled by the craters accumulates on the surface and, as it cools, forms the cone of the volcano...<br /><br />Find out more in this podcast.
Volcanoes are geological structures through which magma rises from within the Earth. These usually originate in the limits of the tectonic plates as a consequence of their movement, although there are also so-called hot spots, which are volcanoes located in places where there are no movements between plates.Discover more in this podcast.