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