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