Land use
Energy
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BIOFUEL
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KEROGEN
MAGMA
MELTDOWN
MINERAL
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| E | N | E | L | J | L | Q | E | O |
| C | W | P | K | Z | A | C | B | L |
| R | O | O | E | T | R | M | I | A |
| U | D | T | R | U | U | A | O | V |
| O | T | O | O | L | T | G | F | O |
| S | L | S | G | L | A | M | U | M |
| E | E | I | E | H | N | A | E | E |
| R | M | I | N | E | R | A | L | R |
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