Figure 10 plate A is oceanic plate B is continental Q16. Plate A is oceanic so it's denser it will go downward in the ocean and Plate B continental plate will just tend to plate A.Q17. Subduction would happen if plate A go down.Subduction is a process when oceanic crust go down and melt because of the magma.Q18:MagmaQ19. A volcano may form.Q20.An earthquake