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