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