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