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