Depth and Layers
Depending on how deep the sea is, the pelagic zone can extend over up to five horizontal layers in the ocean. From the top down, these are:
Read more about this topic: Pelagic Zone
Famous quotes containing the words depth and/or layers:
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Tears from the depth of some divine despair
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In looking on the happy autumn-fields,
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—Don Delillo (b. 1926)