As the depth of the ocean water increases, the temperature __________. decreases. Which is NOT a basic motion of the ocean? splashes. Ocean water contains dissolved _____________, measure as salinity. salt. Salinity is based off of what two things? evaporation and runoff. Which ocean movement is caused by the gravitational pull of the moon? tides. Which ocean motion is defined as a continuous flowing of sea water caused by wind, salinity and temperature? currents. Which ocean motion carries energy, has a constant rhythm and can be caused by wind and friction and even underwater earthquakes? waves. What do we call the measurement of how salty the ocean water is? salinity. Which motion is like a river flowing through the ocean? currents. Which ocean zone gets the least amount of sunlight? midnight zone