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