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