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