Land use
Energy
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BIOFUEL
COAL
ISOTOPES
KEROGEN
MAGMA
MELTDOWN
MINERAL
NATURAL
REMOVAL
RESOURCE
RESOURCES
| X | L | A | R | E | N | I | M | R |
| L | A | V | O | M | E | R | E | E |
| S | E | P | O | T | O | S | I | S |
| A | L | E | U | F | O | I | B | O |
| M | G | P | N | U | F | K | U | U |
| G | K | E | R | O | G | E | N | R |
| A | C | C | O | A | L | Q | C | C |
| M | E | L | T | D | O | W | N | E |
| S | L | A | R | U | T | A | N | K |
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