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