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