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