Oceanographers generally recognize three vertical zones in most parts of the open ocean: a shallow surface mixed zone, a transition zone, and a deep zone. What property is used to differentiate these zones

a shallow surface mixed zone    ---     Epipelagic a transition zone   ---    Mesopelagic a deep zone.      Bathypelagic

Explanation:

The most important zone in the vertical distribution of the water is the surface zone and is asp called as the photic zone and is found to a few 200 m from the surface. Also characterized by the small surface zone ad blow which is the deep and dark zone and aphotic zone includes the inter-tidal, the nitric , and the oceanic zones. It has a depth of 4000 meters. In between they lies the transition zone and is about 1000 metes and organisms that live in this zone are bio-luminescent.

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