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