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