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| decolorizing carbon; decolorizing charcoal | |||
| carbon | |||
| carbon A nonmetallic element existing in the three crystalline forms: graphite, diamond and buckminsterfullerene: occurring in carbon dioxide, coal, oil and all organic compounds | |||
| uhlík: 7 phrases in 4 subjects |
| Chemistry | 1 |
| Economy | 1 |
| Environment | 4 |
| Life sciences | 1 |