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1. |
Which of the following minerals and their ores are correctly matched? 1. Zinc-calamine 2. Platinum-iridium 3. Tin-cassiterite 4. Copper-carnolite |
A. | 1, 2 and 3 |
B. | 1 and 4 |
C. | 2, 3 and 4 |
D. | 1 and 3 |
Answer» E. | |