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