What are volcanoes A volcano is an opening in the surface of the earth out of which melted rock and gases explode.
Where are volcanoes Volcanoes are located in the Pacific Ocean and along the Canary Islands.
Why do volcanoes erupt Volcanoes form when magma bursts through. Cracks in the earth crust because of built up brusher volcanoes candy be there differences' shapes shield, composite, composite cone. Some volcanoes erupt violently and some erupt gently.