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