Question

What are the primary ocean layers, and why are the layers separate? A) Crust, mantle, core; they have distinct compositions. B) Epipelagic, mesopelagic, bathypelagic; they have different temperatures. C) Epipelagic, mesopelagic, bathypelagic; they have different salinity levels. D) Epipelagic, mesopelagic, bathypelagic; they have different light penetration.

Answer 1

The primary ocean layers, Epipelagic, Mesopelagic, and Bathypelagic, are defined and separated based on differences in light penetration, temperature, and pressure.

Step-by-step explanation:

The primary ocean layers are Epipelagic, Mesopelagic, and Bathypelagic. These layers are separated due to differences in light penetration, temperature, and pressure. The Epipelagic layer is the uppermost layer, receiving plenty of sunlight, which influences its temperature and marine life composition. The Mesopelagic layer, often referred to as the 'twilight zone', receives limited light penetration, and therefore houses unique flora and fauna adapted to these conditions. The Bathypelagic layer, also known as the 'midnight zone', is completely dark since light cannot penetrate this deep, and its organisms must adapt to extreme pressure and cold temperatures.

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