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