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