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living organisms require at least 27 elements, of which 15 are metals. among these, those required in major quantities, include

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Q.

Living organisms require at least 27 elements, of which 15 are metals. Among these, those required in major quantities, include

[A] sodium, magnesium, copper and manganese

[B] potassium, sodium, magnesium and calcium

[C] potassium, molybdenum, copper and calcium

[D] potassium, manganese, copper and calcium

Answer & Explanation
Option: [B]

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