Question

What is an aphotic zone ?

Answer 1

Hint: Aphotic zone is the portion of lake or ocean also called midnight that is permanently dark zone, where there is little or no sunlight and no photosynthesis occurs in this zone. The majority of the ocean is aphotic zone, sometimes also referred to as the dark zone.

Complete answer: To answer this question you must know about the zone of the ocean. There are two main zones of the ocean based on depth of water are the photic zone and the aphotic zone. In the photic zone there is enough sunlight for photosynthesis.
The deepest region of the lake or ocean where no light penetrates and it is situated beneath the euphotic zone. Aphotic zone contains no algae or phytoplankton and its inhabitants are exclusively carnivorous animals or organisms that feed on sediment or detritus, all reliant on energy inputs from the euphotic zone. It is extended downwards from depths of about 1000 m, and less in turbid waters.

Animals in the aphotic zone feed on dead organisms that live in the upper zone of the ocean. When the organisms from the upper zone die, they fall to the ocean floor, which allows aphotic creatures to feed when those dead organisms float onto their path. Aphotic animals must eat other organisms because they cannot feed on plants, as plants cannot grow in an area that receives no sunlight.

Note:- Most astonishing fact to think about the aphotic zone are its temperature and pressure. The temperature of this zone is nearly freezing and it gets colder the deeper you go, not only that but the pressure under the water in this area is very high .It increases with the depth of the ocean. A person would not be able to withstand these conditions due to such factors.