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