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