Fossil fuels
Starter
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BURNING
CAPROCK
CHEMICAL
COAL
ENERGY
FIRE
FOSSILS
FUEL
HEAT
HEAT
LIGHT
OIL
PETROL
REMAINS
SMOKE
X | I | K | C | O | R | P | A | C |
H | E | A | T | E | L | L | H | O |
W | S | N | I | A | M | E | R | A |
Y | M | C | Z | M | M | U | U | L |
G | O | S | L | I | S | S | O | F |
R | K | I | C | F | E | F | F | I |
E | E | A | L | I | G | H | T | R |
N | L | O | R | T | E | P | I | E |
E | B | U | R | N | I | N | G | S |
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