Question

What do the words volcanism and volcanoes indicate?

Answer 1

• Volcanism: Indicates the entire spectrum of processes and phenomena through which molten rock (magma) and associated gases rise into the crust or erupt onto the earth’s surface, forming both intrusive (inside the crust) and extrusive (on the surface) volcanic landforms.
• Volcanoes: Indicate the specific vent, conduit, or fissure in the earth’s crust through which lava, volcanic ash, steam, and gases escape to the surface.