bn:00057791n
Noun Concept
EL
κύκλος αζώτου  κύκλος του αζώτου  κύκλο του αζώτου  το μεταβολισμό του αζώτου
EN
The circulation of nitrogen; nitrates from the soil are absorbed by plants which are eaten by animals that die and decay returning the nitrogen back to the soil WordNet 3.0
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