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