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