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