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