MCQOPTIONS
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| 1. |
Organisms require at least 27 elements, out of which 15 are metals, of which they are needed in abundant quantities. |
| A. | Potassium, manganese, molybdenum and calcium |
| B. | Potassium, Molybdenum, Copper and Calcium |
| C. | Potassium, sodium, magnesium and calcium |
| D. | Sodium, Magnesium, Copper and Manganese |
| Answer» D. Sodium, Magnesium, Copper and Manganese | |