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 | R |
E | E | I | B | D | N | A | A | E |
S | L | S | I | L | E | M | R | M |
O | T | O | O | E | G | G | U | O |
U | D | T | M | U | O | A | T | V |
R | O | O | A | F | R | M | A | A |
C | W | P | S | O | E | C | N | L |
E | N | E | S | I | K | K | E | R |
H | T | S | F | B | L | D | E | S |
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