muscle that shrugs the shoulders and moves the head; muscle of the upper back and neck, contraction of this muscle tilts the head so that the face looks up at the sky.
best answer it s got to do with the atmosphere above the water effect of sun being chiefly responsible the further the depth the less heat until finally at greater depths the colder water sits permanently below the warmer skin that sits on top thus causing a layering effect thermocline definition depth at which the rate of decrease of temperature with increase of depth is the largest in general the sea water temperature decreases from the surface to the deepest levels except in high latitudes where the configuration can be more complex
An isochron map of the ocean floor supports the theory of seafloor spreading because it shows the o â¦ lder rock near the deep sea trenches and the younger rocks near ocean ridges.amples of the deep ocean floor are evidence of seafloor spreading because the basaltic oceanic crust and overlapping s â¦ ediment become younger as the mid-ocean ridge is approached. Also, the rock that makes up the floor of the ocean is younger than the continents.