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| coal | |||
| black coal A natural black graphitelike material used as a fuel, formed from fossilized plants and consisting of amorphous carbon with various organic and some inorganic compounds | |||
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akmenogles : 8 צירופים, 5 נושאים |
| אֵקוֹלוֹגִיָה | 1 |
| כִּימִיָה | 1 |
| כַּלְכָּלָה | 1 |
| סביבה | 2 |
| פֶּחָם | 3 |