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