1.Volcanoes are built from quiet flows of thin,runy lava that spread over a broad area.
2.Volcanoes are formed from violent eruptions.
3.Volcanoes made mostly of cinders and other rock particles that have been blown into the air.
4.Volcanoes is often a funnel-shaped pit or despression at the top of volcano cone.
5.When a volcano explodes a caldera were form.