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