Answer:
The magma moves upward and erupts to form either an oceanic ridge or a hot spot volcano. At subduction zones, volatile compounds (especially water) escape from the subducting plate and lower the melting temperature of the overlying mantle rocks. This triggers melting and magma forms as a result.
Explanation:
The answer is either a or b. I am pretty sure it is north. Hope this helps!!
I dont understand what you have to fill in is it the continents. im sorry im dumb
Answer:Ring of Fire
Explanation:
Ring of Fire, long horseshoe-shaped seismically active belt of earthquake epicenters, volcanoes, and tectonic plate boundaries that fringes the Pacific