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