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