Volcanoes only occur at convergent and divergent plate boundaries. At convergent boundaries, one plate is forced below the other, forming a ridge along which mountains and volcanoes develop. Huge forces are exerted as the plates meet. This causes cracks to occur in the crust, which are filled b...
These currents create divergent boundaries and convergent boundaries, in a divergent boundary, the two different landmasses move away from each other and in convergent boundaries, the landmass move towards each other. At the divergent boundary, the landmass forms fissures and try to move away from...