Discussion
Limnetic zone in freshwater ecosystem is characterised by
Answer: B
The limnetic zone of a freshwater lake is the open-water zone away from the shore, where the water is too deep for rooted plants, so it is marked by the absence of rooted vegetation. Phytoplankton and zooplankton live there.
Rooted vegetation grows in the littoral zone near the shore. Lime content has no part in the definition, and phytoplankton are present, so the options about presence of rooted vegetation, lime and absence of phytoplankton are wrong.
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