They mostly come from fault lines where two of earths plates are connected. Does that help? :D
iceland is a belt of volcanoes/hotspots along the mid ocean ridge, it isn't just mostly volcanoes, it is a volcano itself
they mostly erupt in Hawaii
Volcanoes mostly erupt in the sea to make islands or big massesof land,
They are mostly hidden underwater because nothing has yet made them erupt and come to the surface.
Volcanoes usually form where tectonic plates meet.
here do volcanoes mostly uruped
Active volcanoes are mostly found on islands such as Japan ,andaman and nicobar etc.
there are many types of rock that come out but there are mostly igneous rocks. Bauxite, gold, nickel, lead, zinc, copper.
Iceland
Hawaii
No. Composite volcanoes erupt mostly ash and pumice.
Mud volcanoes are mostly located in pakistan