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Question

Given figure represents the different zones of a lake or a pond.
Identify the labelled parts X, Y and Z and select the correct statement.
929223_31e4c6f88493454ba3ab17b36708cd91.jpg

A
X constitutes the shallow water banks and is called as littoral zone.
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B
Y constitutes the open water zone up-to which light can penetrate and is called as profundal zone.
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C
Z constitutes the deep water zone where light cannot penetrate and is called as limnetic zone.
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D
All of these
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Solution

The correct option is A X constitutes the shallow water banks and is called as littoral zone.
X - Littoral zone. It is a shallow coastal zone. Light is available upto bottom in this zone.
Y - Photic zone of limnetic zone. Limnetiic zone is open water zone upt the depth too which light can pentrate
Z - Profundal zone. It is deep water zone where the light does not penetrate.

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