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