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