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