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