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