Which one of the following statements correctly defines the Milky seas effect?

[A] It refers to appearance of white foam over the sea surface due to release from ships.

[B] It refers to occurrence of thin sheet of ice over the sea surface post glacier melting.

[C] It is a luminous phenomenon in which large areas of sea appear to glow translucently.

[D] None of the above.

Answer: C

Notes:

About Milky seas effect:

Milky seas are also called mareel. It is a luminous phenomenon in the ocean, in which large areas of seawater appear to glow translucently (in varying shades of blue)
Such occurrences glow brightly enough at night to be visible from satellites orbiting Earth.
Luminous bacteria (called Vibrio harveyi) cause the particles to glow when they colonize.

Source: Article

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