The transition layer between the mixed layer at the surface and the deep water layer.
the first layer is the surface layer it is nice and warm and mixed with the waves. the next layer is the thermocline it is just warm not any thing special. the next is freezing cold i would not want to go there.
Mixed Layer Main Thermocline Deep Water Layer
Pacific ocean! :D I hope I helped ;)
uranus has a ocean of water underneath its layer of gas
Surface zone
the middle, between the ocean
A basic answer is that the densest ocean water is the saltiest - a ship floats higher in salt water (sea) than in fresh water (lake). Also cold water tends to sink towards the ocean floor, or may form a layer mid way.
Thermocline
Thermal Layer
Places where rivers pour fresh water into the ocean have low salinty
An ocean ridge is a line of mountains in middle of the ocean under the level of water.