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