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