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