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