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Question
Which one of the following is called marine snowfall?
Options:
A .  Continuous fall of tiny marine sediments on ocean floors.
B .  Continuous fall of snow pillets on ocean floors.
C .  Fall of snowflakes on sea surface.
D .  Fall of hail on sea surface.
Answer: Option A
Answer: (a)
In the deep ocean, marine snow is a continuous shower of mostly organic detritus falling from the upper layers of the water column.
It is a significant means of exporting energy from the light-rich photic zone to the aphotic zone below. The term was first coined by the explorer William Beebe as he observed it from his bathysphere.

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