Imagine a researcher aboard an oceanographic vessel collects a sample from the water column, extending from the surface to 3000 meters deep. Analysis of the sample shows it is isopycnal. Which of the following statements correctly define what this means and why? Select all that apply.
-The temperature of the water column must be constant throughout its depth.
-This sample must have been taken from a location in the ocean at high latitude.
-The sample analysis shows there is no pycnocline present.
-Isopycnal means this sample of the water column has constant temperature throughout its depth.
-The temperature of the water column must be constant throughout its depth.
-This sample must have been taken from a location in the ocean at high latitude.
-The sample analysis shows there is no pycnocline present.
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