GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Presence of rooted vegetation
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Absence of rooted vegetation
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Absence of phytoplankton
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Presence of large proportion of lime
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Detailed explanation-1: -Limnetic zone-The limnetic zone is the open water zone at the top of the water body and consequently receives a good deal of light. This zone contains a variety of freshwater fish with bright shiny, greyish or silver black scales that help them to merge with the surroundings.
Detailed explanation-2: -The limnetic zone is the open water area where light does not generally penetrate all the way to the bottom. The bottom sediment, known as the benthic zone, has a surface layer abundant with organisms.
Detailed explanation-3: -A limnetic zone involves high levels of photosynthesis in the open water which form the foundation for much of the Energy within a lake/pond ecosystem. The profundal zone begins at the limit of effective light penetration at the bottom of the limnetic zone.
Detailed explanation-4: -The limnetic zone is the open and well-lit area of a freestanding body of freshwater, such as a lake or pond. Not included in this area is the littoral zone, which is the shallow, near-shore area of the water body.