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 |
| R | A | L | A | O | C | I | E | E |
| E | T | X | P | L | N | S | L | S |
| M | U | A | L | E | O | O | T | O |
| O | R | E | R | U | M | T | D | U |
| V | A | A | R | F | A | O | O | R |
| A | L | C | N | O | G | P | W | C |
| L | E | S | S | I | M | E | N | E |
| S | Q | K | S | B | A | S | B | I |
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