.....VoLcAnISm.....

Do you know what is volcanism?volcano is an opening or vent in the earth surface that pour out material from mantel and volcanism is any activity that happen from volcano.volcano distribution related to the "ring of fire".there are several types of volcano that is cinder cone,composite,caldera and shield.beside that there are 3 types of eruption that is acid magma,basic lava and andesitic lava.some material that through out from volcano eruption is such as pyroclast and volcanic bomb..