Composite volcanoes are built from layers of thick lava, chunks of rock, mud, and ash. They are shaped like ... Parts of an Erupting Volcano Layers of sedimentary, igneous, and metamorphic rock make up Eartha#39;s crust. The crust is covered withanbsp;...
|Title||:||Earthquakes and Volcanoes Thematic Unit|
|Publisher||:||Teacher Created Resources - 2000-02|