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