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