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