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