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