जो अवसादी जैव भू-रासायनिक � – McqOptions

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1.	जो अवसादी जैव भू-रासायनिक चक्र का उदाहरण है
A.	ऑक्सीजन चक्र
B.	नाइट्रोजन चक्र
C.	जल चक्र
D.	फास्फोरस चक्र
Answer» B. नाइट्रोजन चक्र

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