Is this geometry? if so is there a picture i can look at to help you?
At low latitudes, the thermocline is a zone of rapid temperature
over a relatively short depth. it is associated with a similar depth zone marked by a change in density called the pycnocline.
Answer:
shoreline
Explanation:
The continental margin is made up of the continental shelf, the continental slope, and the continental rise. The continental shelf begins at the shoreline. It is flat and its width varies.