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 | C | N | S | B | I | E | E |
| N | W | T | A | E | I | S | B | M |
| E | O | L | T | T | O | O | I | O |
| R | D | A | U | U | M | T | O | V |
| A | T | O | R | P | A | O | F | A |
| L | L | C | A | D | S | P | U | L |
| D | E | M | L | Y | S | E | E | I |
| S | M | A | G | M | A | S | L | N |
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