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