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