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