MCQOPTIONS
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| 1. |
A mineral is termed as 'ore', if |
| A. | A metal can be economically extracted from it |
| B. | It contains ‚â• 40% metal |
| C. | The metal present in it is costly |
| D. | All of the above |
| Answer» B. It contains ‚Äö√¢‚Ä¢ 40% metal | |