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