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