उपस्थित तथा हड्डियों के नि – McqOptions

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1.	उपस्थित तथा हड्डियों के निर्माण और सम्पोषण में आवश्यक तत्व होता है -
A.	मैग्नीशियम
B.	कैल्सियम
C.	जिंक
D.	सिलिकॉन
Answer» C. जिंक

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