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