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