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