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