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