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