<P> Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption , usually at temperatures from 700 to 1,200 ° C ( 1,292 to 2,192 ° F ) . The resulting structures after solidification and cooling are also sometimes described as lava . The molten rock is formed in the interior of some planets , including Earth , and some of their satellites , though such material located below the crust is referred to by other terms . </P>
<P> Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption , usually at temperatures from 700 to 1,200 ° C ( 1,292 to 2,192 ° F ) . The resulting structures after solidification and cooling are also sometimes described as lava . The molten rock is formed in the interior of some planets , including Earth , and some of their satellites , though such material located below the crust is referred to by other terms . </P>
where does the lava that erupts from volcanoes come from
where does the lava that erupts from volcanoes come from
in the interior of some planets , including Earth
in the interior of some planets , including Earth