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