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