MCQOPTIONS
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| 1. |
Living organisms require at least |
| A. | Potassium, maganese, molybdenum and calcium |
| B. | Potassium, molybdenum, copper and calcium |
| C. | Potassium, sodium, magnesium and calcium |
| D. | Sodium, magnesium, copper and magnanees |
| Answer» D. Sodium, magnesium, copper and magnanees | |