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