Question

Open water zone in a deep lake or sea is called
A. Littoral zone
B. Limnetic zone
C. Profundal zone
D. Disphotic zone

Answer 1

Hint:-The upper open ocean which is also said to be the epipelagic zone is the part of the ocean where there is abundant sunlight for organisms like algae to utilize photosynthesis. As we know, photosynthesis is the process in which organisms use sunlight to convert carbon dioxide into food. When we speak frankly, we can say that this is the zone that reaches from the sea surface down to roughly 200 m (that is 650 feet).

Complete answer:
The part of a sea, or a lake, or a river which is close to the shore or nearshore is called the littoral zone. Typically, in the coastal environments, this zone is extended from the high watermark, which is hardly ever inundated, to seashore areas that are enduringly submerged.
In the zone of the Disphotic layer, the water is penetrated through only a small amount of light.
Thus, we can also say that the plant cannot easily grow here due to the insufficient amount of light.
We can say that the deep zone of an inland body of freestanding water, such as a lake or pond is called the profundal zone. However, we can say normally, below the lane of the thermocline, this is the vertical zone in the water which temperature drops rapidly.
One can say that the open and well-lit area of a separate body such as a river, a lake or a pond is called the zone of the limnetic layer.
Thus, the answer is the littoral zone.

Note:- We need to know that the zone which is found just below the Photic Zone is called the Despotic Zone. Also, it is called the twilight layer. The shallow area, near-shore area of the water body is called a littoral zone. The profundal zone is located below the assortment of effective light penetration.