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