In deep ponds and lakes, which one of the following vertical zones receives least light penetration?
[amp_mcq option1=”Surface” option2=”Littoral zone” option3=”Limnetic zone” option4=”Profundal zone” correct=”option4″]
This question was previously asked in
UPSC Geoscientist – 2023
In deep ponds and lakes, the water column is divided into different zones based on light penetration. The Profundal zone is the deep-water zone beneath the Limnetic zone, where light penetration is insufficient for photosynthesis. It is often dark and characterized by decomposition.