सौर ऊर्जा की सबसे महत्वपूर – McqOptions

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1.	सौर ऊर्जा की सबसे महत्वपूर्ण भूमिका है -
A.	आक्सीजन चक्र में
B.	फास्फोरस चक्र में
C.	नाइट्रोजन चक्र में
D.	कार्बन चक्र में
Answer» E.

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