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