Order of a volcano forms and erupts.

At the surface, it erupts to form lava flows and ash deposits. Over time as the volcano continues to erupt, it will get bigger and bigger. What are the different stages of volcanoes? Scientists have categorized volcanoes into three main categories: active, dormant, and extinct.

answer; they use longitude and latitude and   global grid system; good luck

ahaha 8

my answer has to be at least 20 characters so here are the rest of the characters lol