Subduction zones. Subduction zones form when a continental plate is colliding with an oceanic plate. Subduction zones also form when two oceanic plates collide. The continental crust is lighter because of the quartz and feldspar minerals in granite.Iron and magnesium are much heavier minerals found in ocean floor basalt. When the two plates meet the oceanic crustal plate always subducts beneath the continental plate.The subducting oceanic plate bends and plunges beneath the lighter continental plate until it melts. When two oceanic plates meet and form a subduction zone the heavier and denser of two oceanic plates subducts.ubduction zones also form when two oceanic plates collide. The continental crust is lighter because of the quartz and feldspar minerals in granite. Iron and magnesium are much heavier minerals found in ocean floor basalt. When the two plates meet the oceanic crustal plate always subducts beneath the continental plate.
A HealthCorps answered. A few things happen to enable our ears to hear: 1  Sound waves enter your ear canal and cause your eardrum to vibrate.  Vibrations cause the fluid in the cochlea to move, stimulating the receptor cells.
Afterimages Hearing Our auditory sense We hear sound WAVES The height of the wave gives us the amplitude of the sound. The frequency of the wave gives us the pitch if the sound. The Ear Transduction in the ear Sound waves hit the eardrum then anvil then hammer then stirrup then oval window.