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Nitrogen cycle

QuestionAnswer
The percentage of N2 in the atmosphere is 21% False
The organisms need Nitrogen to make proteins True
Organisms can take the Nitrogen they need directly without fixation False
Both Lightning and bacteria help in fixing the Nitrogen True
Plants absorb the Nitrogen compounds fixed in the soil True
Animals can get the Nitrogen compounds by eating the plants True
Created by: Heba.Abualrub
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