Opening and closing phases summarize the movement of these objects in the Wilson cycle. (0[1])RRF (0[2])junctions among these objects are unstable and evolve into FFR junctions, another of the ten types of triple junctions that exist at boundaries (20[1])of these objects. Planes called Wadati–Benioff (20[1])zones (0[2])can form where (0[1])these objects (0[1])meet. (20[1])(*) Slab (10[1]0[1])suction (10[1])and slab (10[2])pull (10[3])are the dominant (10[1])forces (10[2])on these objects. (10[1])These (10[1])objects slide past each (0[1])other (10[2]0[2])at (10[1])transform boundaries (10[4])and move (10[2])apart at divergent boundaries, (0[1])which can result in new (10[1])crust (10[1])being formed to fill the gap left by seafloor spreading. For 10 points, name these large pieces of the Earth’s lithosphere, the central objects of a namesake theory of continental drift. (10[3])■END■ (10[6])