Both, at times - mountains are just like any other part of the world, except they're pushed up high by tectonic forces. Some mountains are granite, some limestone, some basaltic, and so on. Mountains can be 'made' of many different types of rock and earth.
lava?
A mountain made of lava and ash is typically a volcanic mountain, formed from the accumulation of hardened lava flows and volcanic ash during volcanic eruptions. Over time, repeated eruptions can build up the mountain's height and shape. Examples of such mountains include Mount St. Helens in the United States and Mount Fuji in Japan.
The Floor Is Made of Lava was created in 2006.
Jupiter is made with hot lava scientist thought it was made of rock but its not its made of hot lava
Shield Volcanoes are made out of running lava. Not composite.
Bedrock is rock and lava whereas subsoil just contains plants and dirt
the crust is dirt, the mantle is lava and the core is liquid and or solid metal
Lava and magma are composed of molten rock.
Shozo Kawasaki made dirt bikes.
There are 3 main ways for them to be formed. Sedimentary rocks are formed from dirt and sand, and can be found in rivers. Igneous rocks are made from molten magma or lava. Metamorphic rocks are made from already existing rocks, and are changed by pressure or temperature.
Victoria falls is made out of molten lava.
Dinosaur bones have already become fossils, which are solid rock-like structures, before they would have been exposed to lava. Fossils are typically made of minerals that are more resistant to high temperatures than bone tissue, so they can withstand being surrounded by lava without melting.