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