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