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