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