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