Respuesta :
The open-ocean zone order that shows decreasing temperature is:
surface zone, transition zone and deep zone. (Option B)
What is an Open-Ocean Zone?
Open-Ocean Zone also known as the epipelagic zone (or the upper open ocean) is the part of the ocean where there is enough sunlight for algae to utilize photosynthesis.
This zone spans the sea's surface down into the depths to approximately 200 m (or 650 feet).
Learn more about the Open-ocean zone at:
https://brainly.com/question/15382223