रक्त में हीमोग्लोबिन बनाने के लिए निम्न में से कौन सा आवश्यक है? To form haemoglobin in the blood?

Описание: रक्त में हीमोग्लोबिन बनाने के लिए निम्न में से कौन सा आवश्यक है? Which of the following is necessary to form haemoglobin in the blood?
(A) वसा
(B) आइरन
(C) कैल्शियम
(D) प्रोटीन #gk #generalknowledge #currentaffairs #ssc #gkindia #gkfacts #gktricks
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