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