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