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