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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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- Potassium, maganese, molybdenum and calcium
- Potassium, molybdenum, copper and calcium
- Potassium, sodium, magnesium and calcium
- Sodium, magnesium, copper and magnanees
Correct Option: C
N/A
