Yes, once-molten rock that cooled on the surface had been extruded from the earth. That is why it is classified as extrusive igneous rock.
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
Extrusive rocks are formed outside of earths surface. Intrusive rocks are formed inside earths surface.
Extrusive igneous rocks.
Such rock is extrusive igneous rock.
Lava.
a Obsidion rock
a Obsidion rock
Extrusive igneous rocks.
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
Extrusive rocks are formed outside of earths surface. Intrusive rocks are formed inside earths surface.
extrusive igneous rock.
extrusive because it forms on or near earths surface
Extrusive igneous rock.
Extrusive igneous rocks.
extrusive- when melted rock material coools on earths surface instursive-when the melt cools below earths surface
Intrusive
Such rock is extrusive igneous rock.