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