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BIOFUEL
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COAL
ISOTOPES
KEROGEN
MAGMA
MELTDOWN
MINERAL
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| S | K | U | C | B | G | S | Q | K |
| E | E | W | A | I | S | E | N | Q |
| L | R | C | C | O | S | P | W | L |
| A | O | O | R | F | A | O | O | A |
| R | G | A | R | U | M | T | D | V |
| U | E | L | V | E | O | O | T | O |
| T | N | L | A | L | I | S | L | M |
| A | M | G | A | M | B | I | E | E |
| N | L | A | R | E | N | I | M | R |
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