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BIOFUEL
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ISOTOPES
KEROGEN
MAGMA
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Y | Y | L | A | V | O | M | E | R |
Z | N | W | O | D | T | L | E | M |
S | E | P | O | T | O | S | I | I |
W | S | S | A | M | O | I | B | N |
C | O | A | L | U | Z | Q | B | E |
I | K | E | R | O | G | E | N | R |
B | T | C | M | A | G | M | A | A |
L | E | U | F | O | I | B | J | L |
S | S | L | A | R | U | T | A | N |
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